Home / 1,112.92-1,524.69-1,071.38

Finding the Fourth Proportional to 1,112.92, 1,524.69 and 1,071.38

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Solution

The fourth proportional to 1,112.92, 1,524.69 and 1,071.38 is: 1,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.92 : 1,524.69 = 1,071.38 : x
  2. Step 2: Convert to fraction form
    1,112.92/1,524.69 = 1,071.38/x
  3. Step 3: Cross multiply
    1,112.92x = 1,524.69 × 1,071.38
  4. Step 4: Simplify right side
    1,112.92x = 1,633,526.18
  5. Step 5: Solve for x
    x = 1,633,526.18/1,112.92
  6. Step 6: Final answer
    x = 1,467.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.