Home / 3,093.60-4,640.40-2,109.45

Finding the Fourth Proportional to 3,093.60, 4,640.40 and 2,109.45

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Solution

The fourth proportional to 3,093.60, 4,640.40 and 2,109.45 is: 3,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,093.60 : 4,640.40 = 2,109.45 : x
  2. Step 2: Convert to fraction form
    3,093.60/4,640.40 = 2,109.45/x
  3. Step 3: Cross multiply
    3,093.60x = 4,640.40 × 2,109.45
  4. Step 4: Simplify right side
    3,093.60x = 9,788,691.78
  5. Step 5: Solve for x
    x = 9,788,691.78/3,093.60
  6. Step 6: Final answer
    x = 3,164.18

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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.