Home / 1,635.52-2,257.05-1,281.88

Finding the Fourth Proportional to 1,635.52, 2,257.05 and 1,281.88

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Solution

The fourth proportional to 1,635.52, 2,257.05 and 1,281.88 is: 1,769.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.52 : 2,257.05 = 1,281.88 : x
  2. Step 2: Convert to fraction form
    1,635.52/2,257.05 = 1,281.88/x
  3. Step 3: Cross multiply
    1,635.52x = 2,257.05 × 1,281.88
  4. Step 4: Simplify right side
    1,635.52x = 2,893,267.25
  5. Step 5: Solve for x
    x = 2,893,267.25/1,635.52
  6. Step 6: Final answer
    x = 1,769.02

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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.