Home / 3,702.72-5,554.08-3,151.20

Finding the Fourth Proportional to 3,702.72, 5,554.08 and 3,151.20

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Solution

The fourth proportional to 3,702.72, 5,554.08 and 3,151.20 is: 4,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.72 : 5,554.08 = 3,151.20 : x
  2. Step 2: Convert to fraction form
    3,702.72/5,554.08 = 3,151.20/x
  3. Step 3: Cross multiply
    3,702.72x = 5,554.08 × 3,151.20
  4. Step 4: Simplify right side
    3,702.72x = 17,502,016.90
  5. Step 5: Solve for x
    x = 17,502,016.90/3,702.72
  6. Step 6: Final answer
    x = 4,726.80

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1.5x scale

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.