Home / 5,116.05-7,678.22-2,651.52

Finding the Fourth Proportional to 5,116.05, 7,678.22 and 2,651.52

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Solution

The fourth proportional to 5,116.05, 7,678.22 and 2,651.52 is: 3,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.05 : 7,678.22 = 2,651.52 : x
  2. Step 2: Convert to fraction form
    5,116.05/7,678.22 = 2,651.52/x
  3. Step 3: Cross multiply
    5,116.05x = 7,678.22 × 2,651.52
  4. Step 4: Simplify right side
    5,116.05x = 20,358,940.64
  5. Step 5: Solve for x
    x = 20,358,940.64/5,116.05
  6. Step 6: Final answer
    x = 3,979.43

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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.