Home / 1,372.62-2,056.50-1,140.15

Finding the Fourth Proportional to 1,372.62, 2,056.50 and 1,140.15

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Solution

The fourth proportional to 1,372.62, 2,056.50 and 1,140.15 is: 1,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.62 : 2,056.50 = 1,140.15 : x
  2. Step 2: Convert to fraction form
    1,372.62/2,056.50 = 1,140.15/x
  3. Step 3: Cross multiply
    1,372.62x = 2,056.50 × 1,140.15
  4. Step 4: Simplify right side
    1,372.62x = 2,344,718.48
  5. Step 5: Solve for x
    x = 2,344,718.48/1,372.62
  6. Step 6: Final answer
    x = 1,708.21

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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.