Home / 5,379.27-7,424.13-3,021.57

Finding the Fourth Proportional to 5,379.27, 7,424.13 and 3,021.57

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Solution

The fourth proportional to 5,379.27, 7,424.13 and 3,021.57 is: 4,170.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.27 : 7,424.13 = 3,021.57 : x
  2. Step 2: Convert to fraction form
    5,379.27/7,424.13 = 3,021.57/x
  3. Step 3: Cross multiply
    5,379.27x = 7,424.13 × 3,021.57
  4. Step 4: Simplify right side
    5,379.27x = 22,432,528.48
  5. Step 5: Solve for x
    x = 22,432,528.48/5,379.27
  6. Step 6: Final answer
    x = 4,170.18

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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.