Home / 4,191.52-6,288.05-1,380.52

Finding the Fourth Proportional to 4,191.52, 6,288.05 and 1,380.52

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Solution

The fourth proportional to 4,191.52, 6,288.05 and 1,380.52 is: 2,071.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.52 : 6,288.05 = 1,380.52 : x
  2. Step 2: Convert to fraction form
    4,191.52/6,288.05 = 1,380.52/x
  3. Step 3: Cross multiply
    4,191.52x = 6,288.05 × 1,380.52
  4. Step 4: Simplify right side
    4,191.52x = 8,680,740.44
  5. Step 5: Solve for x
    x = 8,680,740.44/4,191.52
  6. Step 6: Final answer
    x = 2,071.03

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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.