Home / 3,193.75-4,781.40-2,860.30

Finding the Fourth Proportional to 3,193.75, 4,781.40 and 2,860.30

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Solution

The fourth proportional to 3,193.75, 4,781.40 and 2,860.30 is: 4,282.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.75 : 4,781.40 = 2,860.30 : x
  2. Step 2: Convert to fraction form
    3,193.75/4,781.40 = 2,860.30/x
  3. Step 3: Cross multiply
    3,193.75x = 4,781.40 × 2,860.30
  4. Step 4: Simplify right side
    3,193.75x = 13,676,238.42
  5. Step 5: Solve for x
    x = 13,676,238.42/3,193.75
  6. Step 6: Final answer
    x = 4,282.19

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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.