Home / 1,581.16-2,372.12-1,119.83

Finding the Fourth Proportional to 1,581.16, 2,372.12 and 1,119.83

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Solution

The fourth proportional to 1,581.16, 2,372.12 and 1,119.83 is: 1,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.16 : 2,372.12 = 1,119.83 : x
  2. Step 2: Convert to fraction form
    1,581.16/2,372.12 = 1,119.83/x
  3. Step 3: Cross multiply
    1,581.16x = 2,372.12 × 1,119.83
  4. Step 4: Simplify right side
    1,581.16x = 2,656,371.14
  5. Step 5: Solve for x
    x = 2,656,371.14/1,581.16
  6. Step 6: Final answer
    x = 1,680.01

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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.