Home / 5,211.98-7,192.30-2,854.07

Finding the Fourth Proportional to 5,211.98, 7,192.30 and 2,854.07

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Solution

The fourth proportional to 5,211.98, 7,192.30 and 2,854.07 is: 3,938.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.98 : 7,192.30 = 2,854.07 : x
  2. Step 2: Convert to fraction form
    5,211.98/7,192.30 = 2,854.07/x
  3. Step 3: Cross multiply
    5,211.98x = 7,192.30 × 2,854.07
  4. Step 4: Simplify right side
    5,211.98x = 20,527,313.39
  5. Step 5: Solve for x
    x = 20,527,313.39/5,211.98
  6. Step 6: Final answer
    x = 3,938.49

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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.