Home / 7,387.76-11,081.56-2,122.90

Finding the Fourth Proportional to 7,387.76, 11,081.56 and 2,122.90

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Solution

The fourth proportional to 7,387.76, 11,081.56 and 2,122.90 is: 3,184.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.76 : 11,081.56 = 2,122.90 : x
  2. Step 2: Convert to fraction form
    7,387.76/11,081.56 = 2,122.90/x
  3. Step 3: Cross multiply
    7,387.76x = 11,081.56 × 2,122.90
  4. Step 4: Simplify right side
    7,387.76x = 23,525,043.72
  5. Step 5: Solve for x
    x = 23,525,043.72/7,387.76
  6. Step 6: Final answer
    x = 3,184.33

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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.