Home / 4,081.19-6,122.70-1,308.11

Finding the Fourth Proportional to 4,081.19, 6,122.70 and 1,308.11

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Solution

The fourth proportional to 4,081.19, 6,122.70 and 1,308.11 is: 1,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.19 : 6,122.70 = 1,308.11 : x
  2. Step 2: Convert to fraction form
    4,081.19/6,122.70 = 1,308.11/x
  3. Step 3: Cross multiply
    4,081.19x = 6,122.70 × 1,308.11
  4. Step 4: Simplify right side
    4,081.19x = 8,009,134.48
  5. Step 5: Solve for x
    x = 8,009,134.48/4,081.19
  6. Step 6: Final answer
    x = 1,962.45

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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.