Home / 2,475.20-3,416.50-1,591.28

Finding the Fourth Proportional to 2,475.20, 3,416.50 and 1,591.28

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Solution

The fourth proportional to 2,475.20, 3,416.50 and 1,591.28 is: 2,196.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.20 : 3,416.50 = 1,591.28 : x
  2. Step 2: Convert to fraction form
    2,475.20/3,416.50 = 1,591.28/x
  3. Step 3: Cross multiply
    2,475.20x = 3,416.50 × 1,591.28
  4. Step 4: Simplify right side
    2,475.20x = 5,436,608.12
  5. Step 5: Solve for x
    x = 5,436,608.12/2,475.20
  6. Step 6: Final answer
    x = 2,196.43

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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.