Home / 2,282.24-3,423.45-638.93

Finding the Fourth Proportional to 2,282.24, 3,423.45 and 638.93

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Solution

The fourth proportional to 2,282.24, 3,423.45 and 638.93 is: 958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.24 : 3,423.45 = 638.93 : x
  2. Step 2: Convert to fraction form
    2,282.24/3,423.45 = 638.93/x
  3. Step 3: Cross multiply
    2,282.24x = 3,423.45 × 638.93
  4. Step 4: Simplify right side
    2,282.24x = 2,187,355.86
  5. Step 5: Solve for x
    x = 2,187,355.86/2,282.24
  6. Step 6: Final answer
    x = 958.42

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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.