Home / 5,116.80-7,061.48-2,992.38

Finding the Fourth Proportional to 5,116.80, 7,061.48 and 2,992.38

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Solution

The fourth proportional to 5,116.80, 7,061.48 and 2,992.38 is: 4,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.80 : 7,061.48 = 2,992.38 : x
  2. Step 2: Convert to fraction form
    5,116.80/7,061.48 = 2,992.38/x
  3. Step 3: Cross multiply
    5,116.80x = 7,061.48 × 2,992.38
  4. Step 4: Simplify right side
    5,116.80x = 21,130,601.30
  5. Step 5: Solve for x
    x = 21,130,601.30/5,116.80
  6. Step 6: Final answer
    x = 4,129.65

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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.