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Finding the Fourth Proportional to 3,310.98, 4,964.07 and 1,555.08

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Solution

The fourth proportional to 3,310.98, 4,964.07 and 1,555.08 is: 2,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.98 : 4,964.07 = 1,555.08 : x
  2. Step 2: Convert to fraction form
    3,310.98/4,964.07 = 1,555.08/x
  3. Step 3: Cross multiply
    3,310.98x = 4,964.07 × 1,555.08
  4. Step 4: Simplify right side
    3,310.98x = 7,719,518.20
  5. Step 5: Solve for x
    x = 7,719,518.20/3,310.98
  6. Step 6: Final answer
    x = 2,331.49

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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.