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Finding the Fourth Proportional to 3,240.57, 4,471.86 and 1,824.28

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Solution

The fourth proportional to 3,240.57, 4,471.86 and 1,824.28 is: 2,517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.57 : 4,471.86 = 1,824.28 : x
  2. Step 2: Convert to fraction form
    3,240.57/4,471.86 = 1,824.28/x
  3. Step 3: Cross multiply
    3,240.57x = 4,471.86 × 1,824.28
  4. Step 4: Simplify right side
    3,240.57x = 8,157,924.76
  5. Step 5: Solve for x
    x = 8,157,924.76/3,240.57
  6. Step 6: Final answer
    x = 2,517.44

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1.5x scale

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.