Home / 1,356.25-2,034.41-490.59

Finding the Fourth Proportional to 1,356.25, 2,034.41 and 490.59

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Solution

The fourth proportional to 1,356.25, 2,034.41 and 490.59 is: 735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.25 : 2,034.41 = 490.59 : x
  2. Step 2: Convert to fraction form
    1,356.25/2,034.41 = 490.59/x
  3. Step 3: Cross multiply
    1,356.25x = 2,034.41 × 490.59
  4. Step 4: Simplify right side
    1,356.25x = 998,061.20
  5. Step 5: Solve for x
    x = 998,061.20/1,356.25
  6. Step 6: Final answer
    x = 735.90

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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.