Home / 1,392.18-2,090.46-1,132.56

Finding the Fourth Proportional to 1,392.18, 2,090.46 and 1,132.56

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Solution

The fourth proportional to 1,392.18, 2,090.46 and 1,132.56 is: 1,700.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.18 : 2,090.46 = 1,132.56 : x
  2. Step 2: Convert to fraction form
    1,392.18/2,090.46 = 1,132.56/x
  3. Step 3: Cross multiply
    1,392.18x = 2,090.46 × 1,132.56
  4. Step 4: Simplify right side
    1,392.18x = 2,367,571.38
  5. Step 5: Solve for x
    x = 2,367,571.38/1,392.18
  6. Step 6: Final answer
    x = 1,700.62

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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.