Home / 1,909.53-2,867.19-1,815.56

Finding the Fourth Proportional to 1,909.53, 2,867.19 and 1,815.56

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Solution

The fourth proportional to 1,909.53, 2,867.19 and 1,815.56 is: 2,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.53 : 2,867.19 = 1,815.56 : x
  2. Step 2: Convert to fraction form
    1,909.53/2,867.19 = 1,815.56/x
  3. Step 3: Cross multiply
    1,909.53x = 2,867.19 × 1,815.56
  4. Step 4: Simplify right side
    1,909.53x = 5,205,555.48
  5. Step 5: Solve for x
    x = 5,205,555.48/1,909.53
  6. Step 6: Final answer
    x = 2,726.09

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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.