Home / 2,885.20-4,331-1,155.04

Finding the Fourth Proportional to 2,885.20, 4,331 and 1,155.04

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Solution

The fourth proportional to 2,885.20, 4,331 and 1,155.04 is: 1,733.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.20 : 4,331 = 1,155.04 : x
  2. Step 2: Convert to fraction form
    2,885.20/4,331 = 1,155.04/x
  3. Step 3: Cross multiply
    2,885.20x = 4,331 × 1,155.04
  4. Step 4: Simplify right side
    2,885.20x = 5,002,478.24
  5. Step 5: Solve for x
    x = 5,002,478.24/2,885.20
  6. Step 6: Final answer
    x = 1,733.84

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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.