Home / 3,621.09-5,432.10-1,401.30

Finding the Fourth Proportional to 3,621.09, 5,432.10 and 1,401.30

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Solution

The fourth proportional to 3,621.09, 5,432.10 and 1,401.30 is: 2,102.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.09 : 5,432.10 = 1,401.30 : x
  2. Step 2: Convert to fraction form
    3,621.09/5,432.10 = 1,401.30/x
  3. Step 3: Cross multiply
    3,621.09x = 5,432.10 × 1,401.30
  4. Step 4: Simplify right side
    3,621.09x = 7,612,001.73
  5. Step 5: Solve for x
    x = 7,612,001.73/3,621.09
  6. Step 6: Final answer
    x = 2,102.13

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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.