Home / 3,929.40-5,885.39-2,281.86

Finding the Fourth Proportional to 3,929.40, 5,885.39 and 2,281.86

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Solution

The fourth proportional to 3,929.40, 5,885.39 and 2,281.86 is: 3,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.40 : 5,885.39 = 2,281.86 : x
  2. Step 2: Convert to fraction form
    3,929.40/5,885.39 = 2,281.86/x
  3. Step 3: Cross multiply
    3,929.40x = 5,885.39 × 2,281.86
  4. Step 4: Simplify right side
    3,929.40x = 13,429,641.73
  5. Step 5: Solve for x
    x = 13,429,641.73/3,929.40
  6. Step 6: Final answer
    x = 3,417.73

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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.