Home / 5,378.20-7,422.18-3,021.08

Finding the Fourth Proportional to 5,378.20, 7,422.18 and 3,021.08

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Solution

The fourth proportional to 5,378.20, 7,422.18 and 3,021.08 is: 4,169.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.20 : 7,422.18 = 3,021.08 : x
  2. Step 2: Convert to fraction form
    5,378.20/7,422.18 = 3,021.08/x
  3. Step 3: Cross multiply
    5,378.20x = 7,422.18 × 3,021.08
  4. Step 4: Simplify right side
    5,378.20x = 22,422,999.55
  5. Step 5: Solve for x
    x = 22,422,999.55/5,378.20
  6. Step 6: Final answer
    x = 4,169.24

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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.