Home / 2,800.07-4,202.85-2,135.77

Finding the Fourth Proportional to 2,800.07, 4,202.85 and 2,135.77

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Solution

The fourth proportional to 2,800.07, 4,202.85 and 2,135.77 is: 3,205.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.07 : 4,202.85 = 2,135.77 : x
  2. Step 2: Convert to fraction form
    2,800.07/4,202.85 = 2,135.77/x
  3. Step 3: Cross multiply
    2,800.07x = 4,202.85 × 2,135.77
  4. Step 4: Simplify right side
    2,800.07x = 8,976,318.45
  5. Step 5: Solve for x
    x = 8,976,318.45/2,800.07
  6. Step 6: Final answer
    x = 3,205.75

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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.