Home / 2,931.60-4,049.40-2,375.76

Finding the Fourth Proportional to 2,931.60, 4,049.40 and 2,375.76

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Solution

The fourth proportional to 2,931.60, 4,049.40 and 2,375.76 is: 3,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.60 : 4,049.40 = 2,375.76 : x
  2. Step 2: Convert to fraction form
    2,931.60/4,049.40 = 2,375.76/x
  3. Step 3: Cross multiply
    2,931.60x = 4,049.40 × 2,375.76
  4. Step 4: Simplify right side
    2,931.60x = 9,620,402.54
  5. Step 5: Solve for x
    x = 9,620,402.54/2,931.60
  6. Step 6: Final answer
    x = 3,281.62

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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.