Home / 1,183.71-1,771.38-1,031.28

Finding the Fourth Proportional to 1,183.71, 1,771.38 and 1,031.28

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Solution

The fourth proportional to 1,183.71, 1,771.38 and 1,031.28 is: 1,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.71 : 1,771.38 = 1,031.28 : x
  2. Step 2: Convert to fraction form
    1,183.71/1,771.38 = 1,031.28/x
  3. Step 3: Cross multiply
    1,183.71x = 1,771.38 × 1,031.28
  4. Step 4: Simplify right side
    1,183.71x = 1,826,788.77
  5. Step 5: Solve for x
    x = 1,826,788.77/1,183.71
  6. Step 6: Final answer
    x = 1,543.27

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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.