Home / 7,479.91-11,220.94-2,285.11

Finding the Fourth Proportional to 7,479.91, 11,220.94 and 2,285.11

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Solution

The fourth proportional to 7,479.91, 11,220.94 and 2,285.11 is: 3,427.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.91 : 11,220.94 = 2,285.11 : x
  2. Step 2: Convert to fraction form
    7,479.91/11,220.94 = 2,285.11/x
  3. Step 3: Cross multiply
    7,479.91x = 11,220.94 × 2,285.11
  4. Step 4: Simplify right side
    7,479.91x = 25,641,026.10
  5. Step 5: Solve for x
    x = 25,641,026.10/7,479.91
  6. Step 6: Final answer
    x = 3,427.99

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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.