Home / 5,211.98-7,192.53-2,854.10

Finding the Fourth Proportional to 5,211.98, 7,192.53 and 2,854.10

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Solution

The fourth proportional to 5,211.98, 7,192.53 and 2,854.10 is: 3,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.98 : 7,192.53 = 2,854.10 : x
  2. Step 2: Convert to fraction form
    5,211.98/7,192.53 = 2,854.10/x
  3. Step 3: Cross multiply
    5,211.98x = 7,192.53 × 2,854.10
  4. Step 4: Simplify right side
    5,211.98x = 20,528,199.87
  5. Step 5: Solve for x
    x = 20,528,199.87/5,211.98
  6. Step 6: Final answer
    x = 3,938.66

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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.