Home / 7,879.48-11,816.28-2,613.52

Finding the Fourth Proportional to 7,879.48, 11,816.28 and 2,613.52

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Solution

The fourth proportional to 7,879.48, 11,816.28 and 2,613.52 is: 3,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.48 : 11,816.28 = 2,613.52 : x
  2. Step 2: Convert to fraction form
    7,879.48/11,816.28 = 2,613.52/x
  3. Step 3: Cross multiply
    7,879.48x = 11,816.28 × 2,613.52
  4. Step 4: Simplify right side
    7,879.48x = 30,882,084.11
  5. Step 5: Solve for x
    x = 30,882,084.11/7,879.48
  6. Step 6: Final answer
    x = 3,919.30

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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.