Home / 7,479.72-11,221.20-2,285.46

Finding the Fourth Proportional to 7,479.72, 11,221.20 and 2,285.46

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Solution

The fourth proportional to 7,479.72, 11,221.20 and 2,285.46 is: 3,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.72 : 11,221.20 = 2,285.46 : x
  2. Step 2: Convert to fraction form
    7,479.72/11,221.20 = 2,285.46/x
  3. Step 3: Cross multiply
    7,479.72x = 11,221.20 × 2,285.46
  4. Step 4: Simplify right side
    7,479.72x = 25,645,603.75
  5. Step 5: Solve for x
    x = 25,645,603.75/7,479.72
  6. Step 6: Final answer
    x = 3,428.68

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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.