Home / 5,379.29-7,422.61-3,020.97

Finding the Fourth Proportional to 5,379.29, 7,422.61 and 3,020.97

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Solution

The fourth proportional to 5,379.29, 7,422.61 and 3,020.97 is: 4,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.29 : 7,422.61 = 3,020.97 : x
  2. Step 2: Convert to fraction form
    5,379.29/7,422.61 = 3,020.97/x
  3. Step 3: Cross multiply
    5,379.29x = 7,422.61 × 3,020.97
  4. Step 4: Simplify right side
    5,379.29x = 22,423,482.13
  5. Step 5: Solve for x
    x = 22,423,482.13/5,379.29
  6. Step 6: Final answer
    x = 4,168.48

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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.