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Finding the Fourth Proportional to 7,425.13, 10,246.88 and 4,238.88

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Solution

The fourth proportional to 7,425.13, 10,246.88 and 4,238.88 is: 5,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.13 : 10,246.88 = 4,238.88 : x
  2. Step 2: Convert to fraction form
    7,425.13/10,246.88 = 4,238.88/x
  3. Step 3: Cross multiply
    7,425.13x = 10,246.88 × 4,238.88
  4. Step 4: Simplify right side
    7,425.13x = 43,435,222.27
  5. Step 5: Solve for x
    x = 43,435,222.27/7,425.13
  6. Step 6: Final answer
    x = 5,849.76

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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.