Home / 5,451.42-8,177.91-2,678.23

Finding the Fourth Proportional to 5,451.42, 8,177.91 and 2,678.23

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Solution

The fourth proportional to 5,451.42, 8,177.91 and 2,678.23 is: 4,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.42 : 8,177.91 = 2,678.23 : x
  2. Step 2: Convert to fraction form
    5,451.42/8,177.91 = 2,678.23/x
  3. Step 3: Cross multiply
    5,451.42x = 8,177.91 × 2,678.23
  4. Step 4: Simplify right side
    5,451.42x = 21,902,323.90
  5. Step 5: Solve for x
    x = 21,902,323.90/5,451.42
  6. Step 6: Final answer
    x = 4,017.73

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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.