Home / 5,081.10-7,011.90-2,842.98

Finding the Fourth Proportional to 5,081.10, 7,011.90 and 2,842.98

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Solution

The fourth proportional to 5,081.10, 7,011.90 and 2,842.98 is: 3,923.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.10 : 7,011.90 = 2,842.98 : x
  2. Step 2: Convert to fraction form
    5,081.10/7,011.90 = 2,842.98/x
  3. Step 3: Cross multiply
    5,081.10x = 7,011.90 × 2,842.98
  4. Step 4: Simplify right side
    5,081.10x = 19,934,691.46
  5. Step 5: Solve for x
    x = 19,934,691.46/5,081.10
  6. Step 6: Final answer
    x = 3,923.30

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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.