Home / 3,581.04-5,372.10-1,272

Finding the Fourth Proportional to 3,581.04, 5,372.10 and 1,272

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Solution

The fourth proportional to 3,581.04, 5,372.10 and 1,272 is: 1,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.04 : 5,372.10 = 1,272 : x
  2. Step 2: Convert to fraction form
    3,581.04/5,372.10 = 1,272/x
  3. Step 3: Cross multiply
    3,581.04x = 5,372.10 × 1,272
  4. Step 4: Simplify right side
    3,581.04x = 6,833,311.20
  5. Step 5: Solve for x
    x = 6,833,311.20/3,581.04
  6. Step 6: Final answer
    x = 1,908.19

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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.