Home / 3,240.64-4,472.08-1,824.36

Finding the Fourth Proportional to 3,240.64, 4,472.08 and 1,824.36

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Solution

The fourth proportional to 3,240.64, 4,472.08 and 1,824.36 is: 2,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.64 : 4,472.08 = 1,824.36 : x
  2. Step 2: Convert to fraction form
    3,240.64/4,472.08 = 1,824.36/x
  3. Step 3: Cross multiply
    3,240.64x = 4,472.08 × 1,824.36
  4. Step 4: Simplify right side
    3,240.64x = 8,158,683.87
  5. Step 5: Solve for x
    x = 8,158,683.87/3,240.64
  6. Step 6: Final answer
    x = 2,517.61

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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.