Home / 1,247.01-1,868.04-1,144.95

Finding the Fourth Proportional to 1,247.01, 1,868.04 and 1,144.95

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Solution

The fourth proportional to 1,247.01, 1,868.04 and 1,144.95 is: 1,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.01 : 1,868.04 = 1,144.95 : x
  2. Step 2: Convert to fraction form
    1,247.01/1,868.04 = 1,144.95/x
  3. Step 3: Cross multiply
    1,247.01x = 1,868.04 × 1,144.95
  4. Step 4: Simplify right side
    1,247.01x = 2,138,812.40
  5. Step 5: Solve for x
    x = 2,138,812.40/1,247.01
  6. Step 6: Final answer
    x = 1,715.15

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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.