Home / 5,271.20-7,906.80-4,906.70

Finding the Fourth Proportional to 5,271.20, 7,906.80 and 4,906.70

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Solution

The fourth proportional to 5,271.20, 7,906.80 and 4,906.70 is: 7,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.20 : 7,906.80 = 4,906.70 : x
  2. Step 2: Convert to fraction form
    5,271.20/7,906.80 = 4,906.70/x
  3. Step 3: Cross multiply
    5,271.20x = 7,906.80 × 4,906.70
  4. Step 4: Simplify right side
    5,271.20x = 38,796,295.56
  5. Step 5: Solve for x
    x = 38,796,295.56/5,271.20
  6. Step 6: Final answer
    x = 7,360.05

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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.