Home / 3,721.32-5,583.20-1,871.48

Finding the Fourth Proportional to 3,721.32, 5,583.20 and 1,871.48

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Solution

The fourth proportional to 3,721.32, 5,583.20 and 1,871.48 is: 2,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.32 : 5,583.20 = 1,871.48 : x
  2. Step 2: Convert to fraction form
    3,721.32/5,583.20 = 1,871.48/x
  3. Step 3: Cross multiply
    3,721.32x = 5,583.20 × 1,871.48
  4. Step 4: Simplify right side
    3,721.32x = 10,448,851.74
  5. Step 5: Solve for x
    x = 10,448,851.74/3,721.32
  6. Step 6: Final answer
    x = 2,807.83

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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.