Home / 2,689.70-4,015.61-2,299.83

Finding the Fourth Proportional to 2,689.70, 4,015.61 and 2,299.83

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Solution

The fourth proportional to 2,689.70, 4,015.61 and 2,299.83 is: 3,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.70 : 4,015.61 = 2,299.83 : x
  2. Step 2: Convert to fraction form
    2,689.70/4,015.61 = 2,299.83/x
  3. Step 3: Cross multiply
    2,689.70x = 4,015.61 × 2,299.83
  4. Step 4: Simplify right side
    2,689.70x = 9,235,208.85
  5. Step 5: Solve for x
    x = 9,235,208.85/2,689.70
  6. Step 6: Final answer
    x = 3,433.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.