Home / 2,425.28-3,638.08-693.92

Finding the Fourth Proportional to 2,425.28, 3,638.08 and 693.92

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Solution

The fourth proportional to 2,425.28, 3,638.08 and 693.92 is: 1,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.28 : 3,638.08 = 693.92 : x
  2. Step 2: Convert to fraction form
    2,425.28/3,638.08 = 693.92/x
  3. Step 3: Cross multiply
    2,425.28x = 3,638.08 × 693.92
  4. Step 4: Simplify right side
    2,425.28x = 2,524,536.47
  5. Step 5: Solve for x
    x = 2,524,536.47/2,425.28
  6. Step 6: Final answer
    x = 1,040.93

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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.