Home / 2,487.28-3,734.64-1,393.84

Finding the Fourth Proportional to 2,487.28, 3,734.64 and 1,393.84

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Solution

The fourth proportional to 2,487.28, 3,734.64 and 1,393.84 is: 2,092.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.28 : 3,734.64 = 1,393.84 : x
  2. Step 2: Convert to fraction form
    2,487.28/3,734.64 = 1,393.84/x
  3. Step 3: Cross multiply
    2,487.28x = 3,734.64 × 1,393.84
  4. Step 4: Simplify right side
    2,487.28x = 5,205,490.62
  5. Step 5: Solve for x
    x = 5,205,490.62/2,487.28
  6. Step 6: Final answer
    x = 2,092.84

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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.