Home / 7,129.34-10,683.89-3,377.12

Finding the Fourth Proportional to 7,129.34, 10,683.89 and 3,377.12

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Solution

The fourth proportional to 7,129.34, 10,683.89 and 3,377.12 is: 5,060.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.34 : 10,683.89 = 3,377.12 : x
  2. Step 2: Convert to fraction form
    7,129.34/10,683.89 = 3,377.12/x
  3. Step 3: Cross multiply
    7,129.34x = 10,683.89 × 3,377.12
  4. Step 4: Simplify right side
    7,129.34x = 36,080,761.71
  5. Step 5: Solve for x
    x = 36,080,761.71/7,129.34
  6. Step 6: Final answer
    x = 5,060.88

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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.