Home / 1,591.36-2,198.72-1,257.82

Finding the Fourth Proportional to 1,591.36, 2,198.72 and 1,257.82

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Solution

The fourth proportional to 1,591.36, 2,198.72 and 1,257.82 is: 1,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.36 : 2,198.72 = 1,257.82 : x
  2. Step 2: Convert to fraction form
    1,591.36/2,198.72 = 1,257.82/x
  3. Step 3: Cross multiply
    1,591.36x = 2,198.72 × 1,257.82
  4. Step 4: Simplify right side
    1,591.36x = 2,765,576.71
  5. Step 5: Solve for x
    x = 2,765,576.71/1,591.36
  6. Step 6: Final answer
    x = 1,737.87

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1.5x scale

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.