Home / 5,149.28-7,723.85-1,253.69

Finding the Fourth Proportional to 5,149.28, 7,723.85 and 1,253.69

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Solution

The fourth proportional to 5,149.28, 7,723.85 and 1,253.69 is: 1,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.28 : 7,723.85 = 1,253.69 : x
  2. Step 2: Convert to fraction form
    5,149.28/7,723.85 = 1,253.69/x
  3. Step 3: Cross multiply
    5,149.28x = 7,723.85 × 1,253.69
  4. Step 4: Simplify right side
    5,149.28x = 9,683,268.62
  5. Step 5: Solve for x
    x = 9,683,268.62/5,149.28
  6. Step 6: Final answer
    x = 1,880.51

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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.