Home / 5,378.88-7,423.62-3,021.18

Finding the Fourth Proportional to 5,378.88, 7,423.62 and 3,021.18

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Solution

The fourth proportional to 5,378.88, 7,423.62 and 3,021.18 is: 4,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.88 : 7,423.62 = 3,021.18 : x
  2. Step 2: Convert to fraction form
    5,378.88/7,423.62 = 3,021.18/x
  3. Step 3: Cross multiply
    5,378.88x = 7,423.62 × 3,021.18
  4. Step 4: Simplify right side
    5,378.88x = 22,428,092.27
  5. Step 5: Solve for x
    x = 22,428,092.27/5,378.88
  6. Step 6: Final answer
    x = 4,169.66

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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.