Home / 7,128.28-10,693.66-3,437.16

Finding the Fourth Proportional to 7,128.28, 10,693.66 and 3,437.16

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Solution

The fourth proportional to 7,128.28, 10,693.66 and 3,437.16 is: 5,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.28 : 10,693.66 = 3,437.16 : x
  2. Step 2: Convert to fraction form
    7,128.28/10,693.66 = 3,437.16/x
  3. Step 3: Cross multiply
    7,128.28x = 10,693.66 × 3,437.16
  4. Step 4: Simplify right side
    7,128.28x = 36,755,820.41
  5. Step 5: Solve for x
    x = 36,755,820.41/7,128.28
  6. Step 6: Final answer
    x = 5,156.34

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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.