Home / 2,891.60-4,337.40-2,672.90

Finding the Fourth Proportional to 2,891.60, 4,337.40 and 2,672.90

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Solution

The fourth proportional to 2,891.60, 4,337.40 and 2,672.90 is: 4,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.60 : 4,337.40 = 2,672.90 : x
  2. Step 2: Convert to fraction form
    2,891.60/4,337.40 = 2,672.90/x
  3. Step 3: Cross multiply
    2,891.60x = 4,337.40 × 2,672.90
  4. Step 4: Simplify right side
    2,891.60x = 11,593,436.46
  5. Step 5: Solve for x
    x = 11,593,436.46/2,891.60
  6. Step 6: Final answer
    x = 4,009.35

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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.