Home / 5,078.38-7,005.23-3,060.42

Finding the Fourth Proportional to 5,078.38, 7,005.23 and 3,060.42

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Solution

The fourth proportional to 5,078.38, 7,005.23 and 3,060.42 is: 4,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.38 : 7,005.23 = 3,060.42 : x
  2. Step 2: Convert to fraction form
    5,078.38/7,005.23 = 3,060.42/x
  3. Step 3: Cross multiply
    5,078.38x = 7,005.23 × 3,060.42
  4. Step 4: Simplify right side
    5,078.38x = 21,438,953.65
  5. Step 5: Solve for x
    x = 21,438,953.65/5,078.38
  6. Step 6: Final answer
    x = 4,221.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.