Home / 1,149.34-1,724.88-1,081.30

Finding the Fourth Proportional to 1,149.34, 1,724.88 and 1,081.30

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Solution

The fourth proportional to 1,149.34, 1,724.88 and 1,081.30 is: 1,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.34 : 1,724.88 = 1,081.30 : x
  2. Step 2: Convert to fraction form
    1,149.34/1,724.88 = 1,081.30/x
  3. Step 3: Cross multiply
    1,149.34x = 1,724.88 × 1,081.30
  4. Step 4: Simplify right side
    1,149.34x = 1,865,112.74
  5. Step 5: Solve for x
    x = 1,865,112.74/1,149.34
  6. Step 6: Final answer
    x = 1,622.77

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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.