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Finding the Fourth Proportional to 1,360.75, 2,041.93 and 495.13

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Solution

The fourth proportional to 1,360.75, 2,041.93 and 495.13 is: 742.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.75 : 2,041.93 = 495.13 : x
  2. Step 2: Convert to fraction form
    1,360.75/2,041.93 = 495.13/x
  3. Step 3: Cross multiply
    1,360.75x = 2,041.93 × 495.13
  4. Step 4: Simplify right side
    1,360.75x = 1,011,020.80
  5. Step 5: Solve for x
    x = 1,011,020.80/1,360.75
  6. Step 6: Final answer
    x = 742.99

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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.