Home / 7,191.91-10,787.37-1,926.91

Finding the Fourth Proportional to 7,191.91, 10,787.37 and 1,926.91

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Solution

The fourth proportional to 7,191.91, 10,787.37 and 1,926.91 is: 2,890.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.91 : 10,787.37 = 1,926.91 : x
  2. Step 2: Convert to fraction form
    7,191.91/10,787.37 = 1,926.91/x
  3. Step 3: Cross multiply
    7,191.91x = 10,787.37 × 1,926.91
  4. Step 4: Simplify right side
    7,191.91x = 20,786,291.13
  5. Step 5: Solve for x
    x = 20,786,291.13/7,191.91
  6. Step 6: Final answer
    x = 2,890.23

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Similar ratio
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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.