Home / 5,234.31-7,223.46-2,876.55

Finding the Fourth Proportional to 5,234.31, 7,223.46 and 2,876.55

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Solution

The fourth proportional to 5,234.31, 7,223.46 and 2,876.55 is: 3,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,234.31 : 7,223.46 = 2,876.55 : x
  2. Step 2: Convert to fraction form
    5,234.31/7,223.46 = 2,876.55/x
  3. Step 3: Cross multiply
    5,234.31x = 7,223.46 × 2,876.55
  4. Step 4: Simplify right side
    5,234.31x = 20,778,643.86
  5. Step 5: Solve for x
    x = 20,778,643.86/5,234.31
  6. Step 6: Final answer
    x = 3,969.70

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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.