Home / 3,728.25-5,592.38-1,420.29

Finding the Fourth Proportional to 3,728.25, 5,592.38 and 1,420.29

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Solution

The fourth proportional to 3,728.25, 5,592.38 and 1,420.29 is: 2,130.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.25 : 5,592.38 = 1,420.29 : x
  2. Step 2: Convert to fraction form
    3,728.25/5,592.38 = 1,420.29/x
  3. Step 3: Cross multiply
    3,728.25x = 5,592.38 × 1,420.29
  4. Step 4: Simplify right side
    3,728.25x = 7,942,794.29
  5. Step 5: Solve for x
    x = 7,942,794.29/3,728.25
  6. Step 6: Final answer
    x = 2,130.44

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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.