Home / 5,010.38-7,515.11-1,312.52

Finding the Fourth Proportional to 5,010.38, 7,515.11 and 1,312.52

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Solution

The fourth proportional to 5,010.38, 7,515.11 and 1,312.52 is: 1,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.38 : 7,515.11 = 1,312.52 : x
  2. Step 2: Convert to fraction form
    5,010.38/7,515.11 = 1,312.52/x
  3. Step 3: Cross multiply
    5,010.38x = 7,515.11 × 1,312.52
  4. Step 4: Simplify right side
    5,010.38x = 9,863,688.04
  5. Step 5: Solve for x
    x = 9,863,688.04/5,010.38
  6. Step 6: Final answer
    x = 1,968.65

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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.