Home / 1,325.38-1,982.78-1,144.74

Finding the Fourth Proportional to 1,325.38, 1,982.78 and 1,144.74

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Solution

The fourth proportional to 1,325.38, 1,982.78 and 1,144.74 is: 1,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.38 : 1,982.78 = 1,144.74 : x
  2. Step 2: Convert to fraction form
    1,325.38/1,982.78 = 1,144.74/x
  3. Step 3: Cross multiply
    1,325.38x = 1,982.78 × 1,144.74
  4. Step 4: Simplify right side
    1,325.38x = 2,269,767.58
  5. Step 5: Solve for x
    x = 2,269,767.58/1,325.38
  6. Step 6: Final answer
    x = 1,712.54

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1.5x scale

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.