Home / 4,081.81-6,119.12-1,618.35

Finding the Fourth Proportional to 4,081.81, 6,119.12 and 1,618.35

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Solution

The fourth proportional to 4,081.81, 6,119.12 and 1,618.35 is: 2,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.81 : 6,119.12 = 1,618.35 : x
  2. Step 2: Convert to fraction form
    4,081.81/6,119.12 = 1,618.35/x
  3. Step 3: Cross multiply
    4,081.81x = 6,119.12 × 1,618.35
  4. Step 4: Simplify right side
    4,081.81x = 9,902,877.85
  5. Step 5: Solve for x
    x = 9,902,877.85/4,081.81
  6. Step 6: Final answer
    x = 2,426.10

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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.