Home / 3,700.65-5,104.98-2,505.68

Finding the Fourth Proportional to 3,700.65, 5,104.98 and 2,505.68

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Solution

The fourth proportional to 3,700.65, 5,104.98 and 2,505.68 is: 3,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.65 : 5,104.98 = 2,505.68 : x
  2. Step 2: Convert to fraction form
    3,700.65/5,104.98 = 2,505.68/x
  3. Step 3: Cross multiply
    3,700.65x = 5,104.98 × 2,505.68
  4. Step 4: Simplify right side
    3,700.65x = 12,791,420.76
  5. Step 5: Solve for x
    x = 12,791,420.76/3,700.65
  6. Step 6: Final answer
    x = 3,456.53

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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.