Home / 7,313.40-10,972.13-2,930.90

Finding the Fourth Proportional to 7,313.40, 10,972.13 and 2,930.90

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Solution

The fourth proportional to 7,313.40, 10,972.13 and 2,930.90 is: 4,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,313.40 : 10,972.13 = 2,930.90 : x
  2. Step 2: Convert to fraction form
    7,313.40/10,972.13 = 2,930.90/x
  3. Step 3: Cross multiply
    7,313.40x = 10,972.13 × 2,930.90
  4. Step 4: Simplify right side
    7,313.40x = 32,158,146.30
  5. Step 5: Solve for x
    x = 32,158,146.30/7,313.40
  6. Step 6: Final answer
    x = 4,397.15

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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.