Home / 5,211.96-7,192.38-2,854.06

Finding the Fourth Proportional to 5,211.96, 7,192.38 and 2,854.06

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Solution

The fourth proportional to 5,211.96, 7,192.38 and 2,854.06 is: 3,938.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.96 : 7,192.38 = 2,854.06 : x
  2. Step 2: Convert to fraction form
    5,211.96/7,192.38 = 2,854.06/x
  3. Step 3: Cross multiply
    5,211.96x = 7,192.38 × 2,854.06
  4. Step 4: Simplify right side
    5,211.96x = 20,527,484.06
  5. Step 5: Solve for x
    x = 20,527,484.06/5,211.96
  6. Step 6: Final answer
    x = 3,938.53

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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.