Home / 3,981.60-5,480.10-3,506.39

Finding the Fourth Proportional to 3,981.60, 5,480.10 and 3,506.39

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Solution

The fourth proportional to 3,981.60, 5,480.10 and 3,506.39 is: 4,826.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.60 : 5,480.10 = 3,506.39 : x
  2. Step 2: Convert to fraction form
    3,981.60/5,480.10 = 3,506.39/x
  3. Step 3: Cross multiply
    3,981.60x = 5,480.10 × 3,506.39
  4. Step 4: Simplify right side
    3,981.60x = 19,215,360.99
  5. Step 5: Solve for x
    x = 19,215,360.99/3,981.60
  6. Step 6: Final answer
    x = 4,826.04

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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.