Home / 2,925.52-4,380.12-1,999.12

Finding the Fourth Proportional to 2,925.52, 4,380.12 and 1,999.12

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Solution

The fourth proportional to 2,925.52, 4,380.12 and 1,999.12 is: 2,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.52 : 4,380.12 = 1,999.12 : x
  2. Step 2: Convert to fraction form
    2,925.52/4,380.12 = 1,999.12/x
  3. Step 3: Cross multiply
    2,925.52x = 4,380.12 × 1,999.12
  4. Step 4: Simplify right side
    2,925.52x = 8,756,385.49
  5. Step 5: Solve for x
    x = 8,756,385.49/2,925.52
  6. Step 6: Final answer
    x = 2,993.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.