Home / 2,891.28-4,337.10-1,159.68

Finding the Fourth Proportional to 2,891.28, 4,337.10 and 1,159.68

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Solution

The fourth proportional to 2,891.28, 4,337.10 and 1,159.68 is: 1,739.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.28 : 4,337.10 = 1,159.68 : x
  2. Step 2: Convert to fraction form
    2,891.28/4,337.10 = 1,159.68/x
  3. Step 3: Cross multiply
    2,891.28x = 4,337.10 × 1,159.68
  4. Step 4: Simplify right side
    2,891.28x = 5,029,648.13
  5. Step 5: Solve for x
    x = 5,029,648.13/2,891.28
  6. Step 6: Final answer
    x = 1,739.59

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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.