Home / 3,151.62-4,728.90-1,203.18

Finding the Fourth Proportional to 3,151.62, 4,728.90 and 1,203.18

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Solution

The fourth proportional to 3,151.62, 4,728.90 and 1,203.18 is: 1,805.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.62 : 4,728.90 = 1,203.18 : x
  2. Step 2: Convert to fraction form
    3,151.62/4,728.90 = 1,203.18/x
  3. Step 3: Cross multiply
    3,151.62x = 4,728.90 × 1,203.18
  4. Step 4: Simplify right side
    3,151.62x = 5,689,717.90
  5. Step 5: Solve for x
    x = 5,689,717.90/3,151.62
  6. Step 6: Final answer
    x = 1,805.33

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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.