Home / 1,110.89-1,532.45-1,031.73

Finding the Fourth Proportional to 1,110.89, 1,532.45 and 1,031.73

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Solution

The fourth proportional to 1,110.89, 1,532.45 and 1,031.73 is: 1,423.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.89 : 1,532.45 = 1,031.73 : x
  2. Step 2: Convert to fraction form
    1,110.89/1,532.45 = 1,031.73/x
  3. Step 3: Cross multiply
    1,110.89x = 1,532.45 × 1,031.73
  4. Step 4: Simplify right side
    1,110.89x = 1,581,074.64
  5. Step 5: Solve for x
    x = 1,581,074.64/1,110.89
  6. Step 6: Final answer
    x = 1,423.25

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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.