Home / 1,356.28-2,034.72-490.59

Finding the Fourth Proportional to 1,356.28, 2,034.72 and 490.59

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Solution

The fourth proportional to 1,356.28, 2,034.72 and 490.59 is: 735.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.28 : 2,034.72 = 490.59 : x
  2. Step 2: Convert to fraction form
    1,356.28/2,034.72 = 490.59/x
  3. Step 3: Cross multiply
    1,356.28x = 2,034.72 × 490.59
  4. Step 4: Simplify right side
    1,356.28x = 998,203.11
  5. Step 5: Solve for x
    x = 998,203.11/1,356.28
  6. Step 6: Final answer
    x = 735.99

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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.