Home / 3,548.70-4,897.20-1,976.76

Finding the Fourth Proportional to 3,548.70, 4,897.20 and 1,976.76

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Solution

The fourth proportional to 3,548.70, 4,897.20 and 1,976.76 is: 2,727.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,548.70 : 4,897.20 = 1,976.76 : x
  2. Step 2: Convert to fraction form
    3,548.70/4,897.20 = 1,976.76/x
  3. Step 3: Cross multiply
    3,548.70x = 4,897.20 × 1,976.76
  4. Step 4: Simplify right side
    3,548.70x = 9,680,589.07
  5. Step 5: Solve for x
    x = 9,680,589.07/3,548.70
  6. Step 6: Final answer
    x = 2,727.93

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.