Home / 4,109.60-6,166.40-1,917.20

Finding the Fourth Proportional to 4,109.60, 6,166.40 and 1,917.20

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Solution

The fourth proportional to 4,109.60, 6,166.40 and 1,917.20 is: 2,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.60 : 6,166.40 = 1,917.20 : x
  2. Step 2: Convert to fraction form
    4,109.60/6,166.40 = 1,917.20/x
  3. Step 3: Cross multiply
    4,109.60x = 6,166.40 × 1,917.20
  4. Step 4: Simplify right side
    4,109.60x = 11,822,222.08
  5. Step 5: Solve for x
    x = 11,822,222.08/4,109.60
  6. Step 6: Final answer
    x = 2,876.73

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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.