Home / 2,291.20-3,436.81-559.83

Finding the Fourth Proportional to 2,291.20, 3,436.81 and 559.83

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Solution

The fourth proportional to 2,291.20, 3,436.81 and 559.83 is: 839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.20 : 3,436.81 = 559.83 : x
  2. Step 2: Convert to fraction form
    2,291.20/3,436.81 = 559.83/x
  3. Step 3: Cross multiply
    2,291.20x = 3,436.81 × 559.83
  4. Step 4: Simplify right side
    2,291.20x = 1,924,024.65
  5. Step 5: Solve for x
    x = 1,924,024.65/2,291.20
  6. Step 6: Final answer
    x = 839.74

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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.