Home / 5,427.09-8,141.45-1,728.23

Finding the Fourth Proportional to 5,427.09, 8,141.45 and 1,728.23

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Solution

The fourth proportional to 5,427.09, 8,141.45 and 1,728.23 is: 2,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.09 : 8,141.45 = 1,728.23 : x
  2. Step 2: Convert to fraction form
    5,427.09/8,141.45 = 1,728.23/x
  3. Step 3: Cross multiply
    5,427.09x = 8,141.45 × 1,728.23
  4. Step 4: Simplify right side
    5,427.09x = 14,070,248.79
  5. Step 5: Solve for x
    x = 14,070,248.79/5,427.09
  6. Step 6: Final answer
    x = 2,592.60

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Half scale
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Double scale
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Similar ratio
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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.