Home / 1,253.32-1,725.04-1,154.90

Finding the Fourth Proportional to 1,253.32, 1,725.04 and 1,154.90

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Solution

The fourth proportional to 1,253.32, 1,725.04 and 1,154.90 is: 1,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.32 : 1,725.04 = 1,154.90 : x
  2. Step 2: Convert to fraction form
    1,253.32/1,725.04 = 1,154.90/x
  3. Step 3: Cross multiply
    1,253.32x = 1,725.04 × 1,154.90
  4. Step 4: Simplify right side
    1,253.32x = 1,992,248.70
  5. Step 5: Solve for x
    x = 1,992,248.70/1,253.32
  6. Step 6: Final answer
    x = 1,589.58

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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.