Home / 5,211.55-7,191.03-2,942.74

Finding the Fourth Proportional to 5,211.55, 7,191.03 and 2,942.74

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Solution

The fourth proportional to 5,211.55, 7,191.03 and 2,942.74 is: 4,060.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.55 : 7,191.03 = 2,942.74 : x
  2. Step 2: Convert to fraction form
    5,211.55/7,191.03 = 2,942.74/x
  3. Step 3: Cross multiply
    5,211.55x = 7,191.03 × 2,942.74
  4. Step 4: Simplify right side
    5,211.55x = 21,161,331.62
  5. Step 5: Solve for x
    x = 21,161,331.62/5,211.55
  6. Step 6: Final answer
    x = 4,060.47

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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.