Home / 3,572.15-4,929.08-1,999.85

Finding the Fourth Proportional to 3,572.15, 4,929.08 and 1,999.85

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Solution

The fourth proportional to 3,572.15, 4,929.08 and 1,999.85 is: 2,759.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.15 : 4,929.08 = 1,999.85 : x
  2. Step 2: Convert to fraction form
    3,572.15/4,929.08 = 1,999.85/x
  3. Step 3: Cross multiply
    3,572.15x = 4,929.08 × 1,999.85
  4. Step 4: Simplify right side
    3,572.15x = 9,857,385.99
  5. Step 5: Solve for x
    x = 9,857,385.99/3,572.15
  6. Step 6: Final answer
    x = 2,759.51

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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.