Home / 6,108.20-9,162.30-3,921.20

Finding the Fourth Proportional to 6,108.20, 9,162.30 and 3,921.20

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Solution

The fourth proportional to 6,108.20, 9,162.30 and 3,921.20 is: 5,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,108.20 : 9,162.30 = 3,921.20 : x
  2. Step 2: Convert to fraction form
    6,108.20/9,162.30 = 3,921.20/x
  3. Step 3: Cross multiply
    6,108.20x = 9,162.30 × 3,921.20
  4. Step 4: Simplify right side
    6,108.20x = 35,927,210.76
  5. Step 5: Solve for x
    x = 35,927,210.76/6,108.20
  6. Step 6: Final answer
    x = 5,881.80

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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.