Home / 6,112.20-9,168.30-3,925.20

Finding the Fourth Proportional to 6,112.20, 9,168.30 and 3,925.20

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Solution

The fourth proportional to 6,112.20, 9,168.30 and 3,925.20 is: 5,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.20 : 9,168.30 = 3,925.20 : x
  2. Step 2: Convert to fraction form
    6,112.20/9,168.30 = 3,925.20/x
  3. Step 3: Cross multiply
    6,112.20x = 9,168.30 × 3,925.20
  4. Step 4: Simplify right side
    6,112.20x = 35,987,411.16
  5. Step 5: Solve for x
    x = 35,987,411.16/6,112.20
  6. Step 6: Final answer
    x = 5,887.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.