Home / 3,753.45-5,631.15-1,121.01

Finding the Fourth Proportional to 3,753.45, 5,631.15 and 1,121.01

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Solution

The fourth proportional to 3,753.45, 5,631.15 and 1,121.01 is: 1,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.45 : 5,631.15 = 1,121.01 : x
  2. Step 2: Convert to fraction form
    3,753.45/5,631.15 = 1,121.01/x
  3. Step 3: Cross multiply
    3,753.45x = 5,631.15 × 1,121.01
  4. Step 4: Simplify right side
    3,753.45x = 6,312,575.46
  5. Step 5: Solve for x
    x = 6,312,575.46/3,753.45
  6. Step 6: Final answer
    x = 1,681.81

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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.