Home / 6,220.20-9,319.79-5,239.70

Finding the Fourth Proportional to 6,220.20, 9,319.79 and 5,239.70

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Solution

The fourth proportional to 6,220.20, 9,319.79 and 5,239.70 is: 7,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.20 : 9,319.79 = 5,239.70 : x
  2. Step 2: Convert to fraction form
    6,220.20/9,319.79 = 5,239.70/x
  3. Step 3: Cross multiply
    6,220.20x = 9,319.79 × 5,239.70
  4. Step 4: Simplify right side
    6,220.20x = 48,832,870.16
  5. Step 5: Solve for x
    x = 48,832,870.16/6,220.20
  6. Step 6: Final answer
    x = 7,850.69

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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.