Home / 3,839.28-5,758.56-1,242.24

Finding the Fourth Proportional to 3,839.28, 5,758.56 and 1,242.24

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Solution

The fourth proportional to 3,839.28, 5,758.56 and 1,242.24 is: 1,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.28 : 5,758.56 = 1,242.24 : x
  2. Step 2: Convert to fraction form
    3,839.28/5,758.56 = 1,242.24/x
  3. Step 3: Cross multiply
    3,839.28x = 5,758.56 × 1,242.24
  4. Step 4: Simplify right side
    3,839.28x = 7,153,513.57
  5. Step 5: Solve for x
    x = 7,153,513.57/3,839.28
  6. Step 6: Final answer
    x = 1,863.24

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1.5x scale

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.