Home / 1,244.61-1,867.25-1,108.60

Finding the Fourth Proportional to 1,244.61, 1,867.25 and 1,108.60

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Solution

The fourth proportional to 1,244.61, 1,867.25 and 1,108.60 is: 1,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.61 : 1,867.25 = 1,108.60 : x
  2. Step 2: Convert to fraction form
    1,244.61/1,867.25 = 1,108.60/x
  3. Step 3: Cross multiply
    1,244.61x = 1,867.25 × 1,108.60
  4. Step 4: Simplify right side
    1,244.61x = 2,070,027.81
  5. Step 5: Solve for x
    x = 2,070,027.81/1,244.61
  6. Step 6: Final answer
    x = 1,663.20

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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.