Home / 1,591.58-2,195.05-1,217.87

Finding the Fourth Proportional to 1,591.58, 2,195.05 and 1,217.87

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Solution

The fourth proportional to 1,591.58, 2,195.05 and 1,217.87 is: 1,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.58 : 2,195.05 = 1,217.87 : x
  2. Step 2: Convert to fraction form
    1,591.58/2,195.05 = 1,217.87/x
  3. Step 3: Cross multiply
    1,591.58x = 2,195.05 × 1,217.87
  4. Step 4: Simplify right side
    1,591.58x = 2,673,282.04
  5. Step 5: Solve for x
    x = 2,673,282.04/1,591.58
  6. Step 6: Final answer
    x = 1,679.64

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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.