Home / 7,130.57-10,691.33-2,973.38

Finding the Fourth Proportional to 7,130.57, 10,691.33 and 2,973.38

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Solution

The fourth proportional to 7,130.57, 10,691.33 and 2,973.38 is: 4,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.57 : 10,691.33 = 2,973.38 : x
  2. Step 2: Convert to fraction form
    7,130.57/10,691.33 = 2,973.38/x
  3. Step 3: Cross multiply
    7,130.57x = 10,691.33 × 2,973.38
  4. Step 4: Simplify right side
    7,130.57x = 31,789,318.47
  5. Step 5: Solve for x
    x = 31,789,318.47/7,130.57
  6. Step 6: Final answer
    x = 4,458.18

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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.