Home / 3,640.58-5,021.60-3,363.76

Finding the Fourth Proportional to 3,640.58, 5,021.60 and 3,363.76

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Solution

The fourth proportional to 3,640.58, 5,021.60 and 3,363.76 is: 4,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.58 : 5,021.60 = 3,363.76 : x
  2. Step 2: Convert to fraction form
    3,640.58/5,021.60 = 3,363.76/x
  3. Step 3: Cross multiply
    3,640.58x = 5,021.60 × 3,363.76
  4. Step 4: Simplify right side
    3,640.58x = 16,891,446.67
  5. Step 5: Solve for x
    x = 16,891,446.67/3,640.58
  6. Step 6: Final answer
    x = 4,639.77

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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.