Home / 2,191.19-3,287-1,079.94

Finding the Fourth Proportional to 2,191.19, 3,287 and 1,079.94

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Solution

The fourth proportional to 2,191.19, 3,287 and 1,079.94 is: 1,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.19 : 3,287 = 1,079.94 : x
  2. Step 2: Convert to fraction form
    2,191.19/3,287 = 1,079.94/x
  3. Step 3: Cross multiply
    2,191.19x = 3,287 × 1,079.94
  4. Step 4: Simplify right side
    2,191.19x = 3,549,762.78
  5. Step 5: Solve for x
    x = 3,549,762.78/2,191.19
  6. Step 6: Final answer
    x = 1,620.02

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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.