Home / 7,271.20-10,908.35-4,152.70

Finding the Fourth Proportional to 7,271.20, 10,908.35 and 4,152.70

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Solution

The fourth proportional to 7,271.20, 10,908.35 and 4,152.70 is: 6,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.20 : 10,908.35 = 4,152.70 : x
  2. Step 2: Convert to fraction form
    7,271.20/10,908.35 = 4,152.70/x
  3. Step 3: Cross multiply
    7,271.20x = 10,908.35 × 4,152.70
  4. Step 4: Simplify right side
    7,271.20x = 45,299,105.05
  5. Step 5: Solve for x
    x = 45,299,105.05/7,271.20
  6. Step 6: Final answer
    x = 6,229.94

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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.