Home / 5,081.02-7,011.76-2,842.90

Finding the Fourth Proportional to 5,081.02, 7,011.76 and 2,842.90

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Solution

The fourth proportional to 5,081.02, 7,011.76 and 2,842.90 is: 3,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.02 : 7,011.76 = 2,842.90 : x
  2. Step 2: Convert to fraction form
    5,081.02/7,011.76 = 2,842.90/x
  3. Step 3: Cross multiply
    5,081.02x = 7,011.76 × 2,842.90
  4. Step 4: Simplify right side
    5,081.02x = 19,933,732.50
  5. Step 5: Solve for x
    x = 19,933,732.50/5,081.02
  6. Step 6: Final answer
    x = 3,923.18

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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.