Home / 5,110.68-7,666.82-1,992.18

Finding the Fourth Proportional to 5,110.68, 7,666.82 and 1,992.18

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Solution

The fourth proportional to 5,110.68, 7,666.82 and 1,992.18 is: 2,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.68 : 7,666.82 = 1,992.18 : x
  2. Step 2: Convert to fraction form
    5,110.68/7,666.82 = 1,992.18/x
  3. Step 3: Cross multiply
    5,110.68x = 7,666.82 × 1,992.18
  4. Step 4: Simplify right side
    5,110.68x = 15,273,685.47
  5. Step 5: Solve for x
    x = 15,273,685.47/5,110.68
  6. Step 6: Final answer
    x = 2,988.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.