Home / 5,247.49-7,242.47-3,151.75

Finding the Fourth Proportional to 5,247.49, 7,242.47 and 3,151.75

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Solution

The fourth proportional to 5,247.49, 7,242.47 and 3,151.75 is: 4,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.49 : 7,242.47 = 3,151.75 : x
  2. Step 2: Convert to fraction form
    5,247.49/7,242.47 = 3,151.75/x
  3. Step 3: Cross multiply
    5,247.49x = 7,242.47 × 3,151.75
  4. Step 4: Simplify right side
    5,247.49x = 22,826,454.82
  5. Step 5: Solve for x
    x = 22,826,454.82/5,247.49
  6. Step 6: Final answer
    x = 4,349.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.