Home / 3,151.03-4,348.36-1,972.75

Finding the Fourth Proportional to 3,151.03, 4,348.36 and 1,972.75

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Solution

The fourth proportional to 3,151.03, 4,348.36 and 1,972.75 is: 2,722.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.03 : 4,348.36 = 1,972.75 : x
  2. Step 2: Convert to fraction form
    3,151.03/4,348.36 = 1,972.75/x
  3. Step 3: Cross multiply
    3,151.03x = 4,348.36 × 1,972.75
  4. Step 4: Simplify right side
    3,151.03x = 8,578,227.19
  5. Step 5: Solve for x
    x = 8,578,227.19/3,151.03
  6. Step 6: Final answer
    x = 2,722.36

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Double scale
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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.