Home / 7,316.74-10,972-3,154.15

Finding the Fourth Proportional to 7,316.74, 10,972 and 3,154.15

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Solution

The fourth proportional to 7,316.74, 10,972 and 3,154.15 is: 4,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.74 : 10,972 = 3,154.15 : x
  2. Step 2: Convert to fraction form
    7,316.74/10,972 = 3,154.15/x
  3. Step 3: Cross multiply
    7,316.74x = 10,972 × 3,154.15
  4. Step 4: Simplify right side
    7,316.74x = 34,607,333.80
  5. Step 5: Solve for x
    x = 34,607,333.80/7,316.74
  6. Step 6: Final answer
    x = 4,729.88

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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.