Home / 4,757.10-7,135.65-1,247.10

Finding the Fourth Proportional to 4,757.10, 7,135.65 and 1,247.10

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Solution

The fourth proportional to 4,757.10, 7,135.65 and 1,247.10 is: 1,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,757.10 : 7,135.65 = 1,247.10 : x
  2. Step 2: Convert to fraction form
    4,757.10/7,135.65 = 1,247.10/x
  3. Step 3: Cross multiply
    4,757.10x = 7,135.65 × 1,247.10
  4. Step 4: Simplify right side
    4,757.10x = 8,898,869.12
  5. Step 5: Solve for x
    x = 8,898,869.12/4,757.10
  6. Step 6: Final answer
    x = 1,870.65

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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.