Home / 7,326.54-10,990.89-2,131.74

Finding the Fourth Proportional to 7,326.54, 10,990.89 and 2,131.74

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Solution

The fourth proportional to 7,326.54, 10,990.89 and 2,131.74 is: 3,197.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.54 : 10,990.89 = 2,131.74 : x
  2. Step 2: Convert to fraction form
    7,326.54/10,990.89 = 2,131.74/x
  3. Step 3: Cross multiply
    7,326.54x = 10,990.89 × 2,131.74
  4. Step 4: Simplify right side
    7,326.54x = 23,429,719.85
  5. Step 5: Solve for x
    x = 23,429,719.85/7,326.54
  6. Step 6: Final answer
    x = 3,197.92

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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.