Home / 4,811.52-7,255.68-4,243.20

Finding the Fourth Proportional to 4,811.52, 7,255.68 and 4,243.20

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Solution

The fourth proportional to 4,811.52, 7,255.68 and 4,243.20 is: 6,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.52 : 7,255.68 = 4,243.20 : x
  2. Step 2: Convert to fraction form
    4,811.52/7,255.68 = 4,243.20/x
  3. Step 3: Cross multiply
    4,811.52x = 7,255.68 × 4,243.20
  4. Step 4: Simplify right side
    4,811.52x = 30,787,301.38
  5. Step 5: Solve for x
    x = 30,787,301.38/4,811.52
  6. Step 6: Final answer
    x = 6,398.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.