Home / 1,392.02-2,084.32-1,149.62

Finding the Fourth Proportional to 1,392.02, 2,084.32 and 1,149.62

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Solution

The fourth proportional to 1,392.02, 2,084.32 and 1,149.62 is: 1,721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.02 : 2,084.32 = 1,149.62 : x
  2. Step 2: Convert to fraction form
    1,392.02/2,084.32 = 1,149.62/x
  3. Step 3: Cross multiply
    1,392.02x = 2,084.32 × 1,149.62
  4. Step 4: Simplify right side
    1,392.02x = 2,396,175.96
  5. Step 5: Solve for x
    x = 2,396,175.96/1,392.02
  6. Step 6: Final answer
    x = 1,721.37

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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.