Home / 2,919.60-4,372.95-2,691.96

Finding the Fourth Proportional to 2,919.60, 4,372.95 and 2,691.96

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Solution

The fourth proportional to 2,919.60, 4,372.95 and 2,691.96 is: 4,031.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.60 : 4,372.95 = 2,691.96 : x
  2. Step 2: Convert to fraction form
    2,919.60/4,372.95 = 2,691.96/x
  3. Step 3: Cross multiply
    2,919.60x = 4,372.95 × 2,691.96
  4. Step 4: Simplify right side
    2,919.60x = 11,771,806.48
  5. Step 5: Solve for x
    x = 11,771,806.48/2,919.60
  6. Step 6: Final answer
    x = 4,031.99

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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.