Home / 7,479.24-11,220.80-2,799.29

Finding the Fourth Proportional to 7,479.24, 11,220.80 and 2,799.29

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Solution

The fourth proportional to 7,479.24, 11,220.80 and 2,799.29 is: 4,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.24 : 11,220.80 = 2,799.29 : x
  2. Step 2: Convert to fraction form
    7,479.24/11,220.80 = 2,799.29/x
  3. Step 3: Cross multiply
    7,479.24x = 11,220.80 × 2,799.29
  4. Step 4: Simplify right side
    7,479.24x = 31,410,203.13
  5. Step 5: Solve for x
    x = 31,410,203.13/7,479.24
  6. Step 6: Final answer
    x = 4,199.65

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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.