Home / 7,022.52-9,691.56-4,039.20

Finding the Fourth Proportional to 7,022.52, 9,691.56 and 4,039.20

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Solution

The fourth proportional to 7,022.52, 9,691.56 and 4,039.20 is: 5,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.52 : 9,691.56 = 4,039.20 : x
  2. Step 2: Convert to fraction form
    7,022.52/9,691.56 = 4,039.20/x
  3. Step 3: Cross multiply
    7,022.52x = 9,691.56 × 4,039.20
  4. Step 4: Simplify right side
    7,022.52x = 39,146,149.15
  5. Step 5: Solve for x
    x = 39,146,149.15/7,022.52
  6. Step 6: Final answer
    x = 5,574.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.