Home / 1,411.12-2,115.48-588.88

Finding the Fourth Proportional to 1,411.12, 2,115.48 and 588.88

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Solution

The fourth proportional to 1,411.12, 2,115.48 and 588.88 is: 882.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.12 : 2,115.48 = 588.88 : x
  2. Step 2: Convert to fraction form
    1,411.12/2,115.48 = 588.88/x
  3. Step 3: Cross multiply
    1,411.12x = 2,115.48 × 588.88
  4. Step 4: Simplify right side
    1,411.12x = 1,245,763.86
  5. Step 5: Solve for x
    x = 1,245,763.86/1,411.12
  6. Step 6: Final answer
    x = 882.82

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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.