Home / 6,118.32-9,180.10-1,958.66

Finding the Fourth Proportional to 6,118.32, 9,180.10 and 1,958.66

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Solution

The fourth proportional to 6,118.32, 9,180.10 and 1,958.66 is: 2,938.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.32 : 9,180.10 = 1,958.66 : x
  2. Step 2: Convert to fraction form
    6,118.32/9,180.10 = 1,958.66/x
  3. Step 3: Cross multiply
    6,118.32x = 9,180.10 × 1,958.66
  4. Step 4: Simplify right side
    6,118.32x = 17,980,694.67
  5. Step 5: Solve for x
    x = 17,980,694.67/6,118.32
  6. Step 6: Final answer
    x = 2,938.83

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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.