Home / 3,191.42-4,788.59-1,436.87

Finding the Fourth Proportional to 3,191.42, 4,788.59 and 1,436.87

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Solution

The fourth proportional to 3,191.42, 4,788.59 and 1,436.87 is: 2,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.42 : 4,788.59 = 1,436.87 : x
  2. Step 2: Convert to fraction form
    3,191.42/4,788.59 = 1,436.87/x
  3. Step 3: Cross multiply
    3,191.42x = 4,788.59 × 1,436.87
  4. Step 4: Simplify right side
    3,191.42x = 6,880,586.10
  5. Step 5: Solve for x
    x = 6,880,586.10/3,191.42
  6. Step 6: Final answer
    x = 2,155.96

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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.