Home / 4,123.60-5,689.15-2,330.87

Finding the Fourth Proportional to 4,123.60, 5,689.15 and 2,330.87

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Solution

The fourth proportional to 4,123.60, 5,689.15 and 2,330.87 is: 3,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.60 : 5,689.15 = 2,330.87 : x
  2. Step 2: Convert to fraction form
    4,123.60/5,689.15 = 2,330.87/x
  3. Step 3: Cross multiply
    4,123.60x = 5,689.15 × 2,330.87
  4. Step 4: Simplify right side
    4,123.60x = 13,260,634.79
  5. Step 5: Solve for x
    x = 13,260,634.79/4,123.60
  6. Step 6: Final answer
    x = 3,215.79

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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.