Home / 6,320.80-9,486.60-2,816.20

Finding the Fourth Proportional to 6,320.80, 9,486.60 and 2,816.20

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Solution

The fourth proportional to 6,320.80, 9,486.60 and 2,816.20 is: 4,226.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.80 : 9,486.60 = 2,816.20 : x
  2. Step 2: Convert to fraction form
    6,320.80/9,486.60 = 2,816.20/x
  3. Step 3: Cross multiply
    6,320.80x = 9,486.60 × 2,816.20
  4. Step 4: Simplify right side
    6,320.80x = 26,716,162.92
  5. Step 5: Solve for x
    x = 26,716,162.92/6,320.80
  6. Step 6: Final answer
    x = 4,226.71

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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.