Home / 5,479.70-8,223.80-2,193.12

Finding the Fourth Proportional to 5,479.70, 8,223.80 and 2,193.12

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Solution

The fourth proportional to 5,479.70, 8,223.80 and 2,193.12 is: 3,291.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.70 : 8,223.80 = 2,193.12 : x
  2. Step 2: Convert to fraction form
    5,479.70/8,223.80 = 2,193.12/x
  3. Step 3: Cross multiply
    5,479.70x = 8,223.80 × 2,193.12
  4. Step 4: Simplify right side
    5,479.70x = 18,035,769.29
  5. Step 5: Solve for x
    x = 18,035,769.29/5,479.70
  6. Step 6: Final answer
    x = 3,291.38

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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.