Home / 1,353.87-2,031.12-1,217.79

Finding the Fourth Proportional to 1,353.87, 2,031.12 and 1,217.79

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Solution

The fourth proportional to 1,353.87, 2,031.12 and 1,217.79 is: 1,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.87 : 2,031.12 = 1,217.79 : x
  2. Step 2: Convert to fraction form
    1,353.87/2,031.12 = 1,217.79/x
  3. Step 3: Cross multiply
    1,353.87x = 2,031.12 × 1,217.79
  4. Step 4: Simplify right side
    1,353.87x = 2,473,477.62
  5. Step 5: Solve for x
    x = 2,473,477.62/1,353.87
  6. Step 6: Final answer
    x = 1,826.97

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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.