Home / 7,478.19-11,218.50-2,799.83

Finding the Fourth Proportional to 7,478.19, 11,218.50 and 2,799.83

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Solution

The fourth proportional to 7,478.19, 11,218.50 and 2,799.83 is: 4,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.19 : 11,218.50 = 2,799.83 : x
  2. Step 2: Convert to fraction form
    7,478.19/11,218.50 = 2,799.83/x
  3. Step 3: Cross multiply
    7,478.19x = 11,218.50 × 2,799.83
  4. Step 4: Simplify right side
    7,478.19x = 31,409,920.90
  5. Step 5: Solve for x
    x = 31,409,920.90/7,478.19
  6. Step 6: Final answer
    x = 4,200.20

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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.