Home / 3,479.40-4,800.60-2,154.24

Finding the Fourth Proportional to 3,479.40, 4,800.60 and 2,154.24

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Solution

The fourth proportional to 3,479.40, 4,800.60 and 2,154.24 is: 2,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.40 : 4,800.60 = 2,154.24 : x
  2. Step 2: Convert to fraction form
    3,479.40/4,800.60 = 2,154.24/x
  3. Step 3: Cross multiply
    3,479.40x = 4,800.60 × 2,154.24
  4. Step 4: Simplify right side
    3,479.40x = 10,341,644.54
  5. Step 5: Solve for x
    x = 10,341,644.54/3,479.40
  6. Step 6: Final answer
    x = 2,972.25

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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.