Home / 4,152.20-6,227.68-1,378.88

Finding the Fourth Proportional to 4,152.20, 6,227.68 and 1,378.88

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Solution

The fourth proportional to 4,152.20, 6,227.68 and 1,378.88 is: 2,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,152.20 : 6,227.68 = 1,378.88 : x
  2. Step 2: Convert to fraction form
    4,152.20/6,227.68 = 1,378.88/x
  3. Step 3: Cross multiply
    4,152.20x = 6,227.68 × 1,378.88
  4. Step 4: Simplify right side
    4,152.20x = 8,587,223.40
  5. Step 5: Solve for x
    x = 8,587,223.40/4,152.20
  6. Step 6: Final answer
    x = 2,068.11

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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.