Home / 1,950.38-2,691.61-1,111.24

Finding the Fourth Proportional to 1,950.38, 2,691.61 and 1,111.24

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Solution

The fourth proportional to 1,950.38, 2,691.61 and 1,111.24 is: 1,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.38 : 2,691.61 = 1,111.24 : x
  2. Step 2: Convert to fraction form
    1,950.38/2,691.61 = 1,111.24/x
  3. Step 3: Cross multiply
    1,950.38x = 2,691.61 × 1,111.24
  4. Step 4: Simplify right side
    1,950.38x = 2,991,024.70
  5. Step 5: Solve for x
    x = 2,991,024.70/1,950.38
  6. Step 6: Final answer
    x = 1,533.56

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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.