Home / 5,131.14-7,081.08-2,862.62

Finding the Fourth Proportional to 5,131.14, 7,081.08 and 2,862.62

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Solution

The fourth proportional to 5,131.14, 7,081.08 and 2,862.62 is: 3,950.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.14 : 7,081.08 = 2,862.62 : x
  2. Step 2: Convert to fraction form
    5,131.14/7,081.08 = 2,862.62/x
  3. Step 3: Cross multiply
    5,131.14x = 7,081.08 × 2,862.62
  4. Step 4: Simplify right side
    5,131.14x = 20,270,441.23
  5. Step 5: Solve for x
    x = 20,270,441.23/5,131.14
  6. Step 6: Final answer
    x = 3,950.48

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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.