Home / 7,917.48-11,877.66-2,722.20

Finding the Fourth Proportional to 7,917.48, 11,877.66 and 2,722.20

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Solution

The fourth proportional to 7,917.48, 11,877.66 and 2,722.20 is: 4,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.48 : 11,877.66 = 2,722.20 : x
  2. Step 2: Convert to fraction form
    7,917.48/11,877.66 = 2,722.20/x
  3. Step 3: Cross multiply
    7,917.48x = 11,877.66 × 2,722.20
  4. Step 4: Simplify right side
    7,917.48x = 32,333,366.05
  5. Step 5: Solve for x
    x = 32,333,366.05/7,917.48
  6. Step 6: Final answer
    x = 4,083.80

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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.