Home / 7,022.01-9,691.35-4,037.78

Finding the Fourth Proportional to 7,022.01, 9,691.35 and 4,037.78

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Solution

The fourth proportional to 7,022.01, 9,691.35 and 4,037.78 is: 5,572.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.01 : 9,691.35 = 4,037.78 : x
  2. Step 2: Convert to fraction form
    7,022.01/9,691.35 = 4,037.78/x
  3. Step 3: Cross multiply
    7,022.01x = 9,691.35 × 4,037.78
  4. Step 4: Simplify right side
    7,022.01x = 39,131,490.75
  5. Step 5: Solve for x
    x = 39,131,490.75/7,022.01
  6. Step 6: Final answer
    x = 5,572.69

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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.