Home / 3,193.40-4,781.08-2,151.34

Finding the Fourth Proportional to 3,193.40, 4,781.08 and 2,151.34

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Solution

The fourth proportional to 3,193.40, 4,781.08 and 2,151.34 is: 3,220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.40 : 4,781.08 = 2,151.34 : x
  2. Step 2: Convert to fraction form
    3,193.40/4,781.08 = 2,151.34/x
  3. Step 3: Cross multiply
    3,193.40x = 4,781.08 × 2,151.34
  4. Step 4: Simplify right side
    3,193.40x = 10,285,728.65
  5. Step 5: Solve for x
    x = 10,285,728.65/3,193.40
  6. Step 6: Final answer
    x = 3,220.93

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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.