Home / 3,680.64-5,521.20-1,371.36

Finding the Fourth Proportional to 3,680.64, 5,521.20 and 1,371.36

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Solution

The fourth proportional to 3,680.64, 5,521.20 and 1,371.36 is: 2,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.64 : 5,521.20 = 1,371.36 : x
  2. Step 2: Convert to fraction form
    3,680.64/5,521.20 = 1,371.36/x
  3. Step 3: Cross multiply
    3,680.64x = 5,521.20 × 1,371.36
  4. Step 4: Simplify right side
    3,680.64x = 7,571,552.83
  5. Step 5: Solve for x
    x = 7,571,552.83/3,680.64
  6. Step 6: Final answer
    x = 2,057.13

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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.