Home / 1,583.12-2,372.76-1,121.04

Finding the Fourth Proportional to 1,583.12, 2,372.76 and 1,121.04

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Solution

The fourth proportional to 1,583.12, 2,372.76 and 1,121.04 is: 1,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.12 : 2,372.76 = 1,121.04 : x
  2. Step 2: Convert to fraction form
    1,583.12/2,372.76 = 1,121.04/x
  3. Step 3: Cross multiply
    1,583.12x = 2,372.76 × 1,121.04
  4. Step 4: Simplify right side
    1,583.12x = 2,659,958.87
  5. Step 5: Solve for x
    x = 2,659,958.87/1,583.12
  6. Step 6: Final answer
    x = 1,680.21

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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.