Home / 5,211.93-7,192.65-2,854.07

Finding the Fourth Proportional to 5,211.93, 7,192.65 and 2,854.07

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Solution

The fourth proportional to 5,211.93, 7,192.65 and 2,854.07 is: 3,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.93 : 7,192.65 = 2,854.07 : x
  2. Step 2: Convert to fraction form
    5,211.93/7,192.65 = 2,854.07/x
  3. Step 3: Cross multiply
    5,211.93x = 7,192.65 × 2,854.07
  4. Step 4: Simplify right side
    5,211.93x = 20,528,290.62
  5. Step 5: Solve for x
    x = 20,528,290.62/5,211.93
  6. Step 6: Final answer
    x = 3,938.71

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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.