Home / 3,191.46-4,788.82-1,436.12

Finding the Fourth Proportional to 3,191.46, 4,788.82 and 1,436.12

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Solution

The fourth proportional to 3,191.46, 4,788.82 and 1,436.12 is: 2,154.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.46 : 4,788.82 = 1,436.12 : x
  2. Step 2: Convert to fraction form
    3,191.46/4,788.82 = 1,436.12/x
  3. Step 3: Cross multiply
    3,191.46x = 4,788.82 × 1,436.12
  4. Step 4: Simplify right side
    3,191.46x = 6,877,320.18
  5. Step 5: Solve for x
    x = 6,877,320.18/3,191.46
  6. Step 6: Final answer
    x = 2,154.91

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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.