Home / 5,227.89-7,211.48-3,130.80

Finding the Fourth Proportional to 5,227.89, 7,211.48 and 3,130.80

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Solution

The fourth proportional to 5,227.89, 7,211.48 and 3,130.80 is: 4,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.89 : 7,211.48 = 3,130.80 : x
  2. Step 2: Convert to fraction form
    5,227.89/7,211.48 = 3,130.80/x
  3. Step 3: Cross multiply
    5,227.89x = 7,211.48 × 3,130.80
  4. Step 4: Simplify right side
    5,227.89x = 22,577,685.93
  5. Step 5: Solve for x
    x = 22,577,685.93/5,227.89
  6. Step 6: Final answer
    x = 4,318.70

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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.