Home / 1,702.38-2,349.60-1,111.88

Finding the Fourth Proportional to 1,702.38, 2,349.60 and 1,111.88

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Solution

The fourth proportional to 1,702.38, 2,349.60 and 1,111.88 is: 1,534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.38 : 2,349.60 = 1,111.88 : x
  2. Step 2: Convert to fraction form
    1,702.38/2,349.60 = 1,111.88/x
  3. Step 3: Cross multiply
    1,702.38x = 2,349.60 × 1,111.88
  4. Step 4: Simplify right side
    1,702.38x = 2,612,473.25
  5. Step 5: Solve for x
    x = 2,612,473.25/1,702.38
  6. Step 6: Final answer
    x = 1,534.60

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1.5x scale

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.