Home / 7,456.19-11,181.52-2,189.75

Finding the Fourth Proportional to 7,456.19, 11,181.52 and 2,189.75

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Solution

The fourth proportional to 7,456.19, 11,181.52 and 2,189.75 is: 3,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.19 : 11,181.52 = 2,189.75 : x
  2. Step 2: Convert to fraction form
    7,456.19/11,181.52 = 2,189.75/x
  3. Step 3: Cross multiply
    7,456.19x = 11,181.52 × 2,189.75
  4. Step 4: Simplify right side
    7,456.19x = 24,484,722.47
  5. Step 5: Solve for x
    x = 24,484,722.47/7,456.19
  6. Step 6: Final answer
    x = 3,283.81

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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.