Home / 3,479.20-4,801.33-2,153.69

Finding the Fourth Proportional to 3,479.20, 4,801.33 and 2,153.69

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Solution

The fourth proportional to 3,479.20, 4,801.33 and 2,153.69 is: 2,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.20 : 4,801.33 = 2,153.69 : x
  2. Step 2: Convert to fraction form
    3,479.20/4,801.33 = 2,153.69/x
  3. Step 3: Cross multiply
    3,479.20x = 4,801.33 × 2,153.69
  4. Step 4: Simplify right side
    3,479.20x = 10,340,560.98
  5. Step 5: Solve for x
    x = 10,340,560.98/3,479.20
  6. Step 6: Final answer
    x = 2,972.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.