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Finding the Fourth Proportional to 3,976.91, 5,965.37 and 1,054.99

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Solution

The fourth proportional to 3,976.91, 5,965.37 and 1,054.99 is: 1,582.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.91 : 5,965.37 = 1,054.99 : x
  2. Step 2: Convert to fraction form
    3,976.91/5,965.37 = 1,054.99/x
  3. Step 3: Cross multiply
    3,976.91x = 5,965.37 × 1,054.99
  4. Step 4: Simplify right side
    3,976.91x = 6,293,405.70
  5. Step 5: Solve for x
    x = 6,293,405.70/3,976.91
  6. Step 6: Final answer
    x = 1,582.49

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,977.91, 5,966.87 and 1,055.99
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.