Home / 2,686.50-4,029.66-2,219.94

Finding the Fourth Proportional to 2,686.50, 4,029.66 and 2,219.94

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Solution

The fourth proportional to 2,686.50, 4,029.66 and 2,219.94 is: 3,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.50 : 4,029.66 = 2,219.94 : x
  2. Step 2: Convert to fraction form
    2,686.50/4,029.66 = 2,219.94/x
  3. Step 3: Cross multiply
    2,686.50x = 4,029.66 × 2,219.94
  4. Step 4: Simplify right side
    2,686.50x = 8,945,603.42
  5. Step 5: Solve for x
    x = 8,945,603.42/2,686.50
  6. Step 6: Final answer
    x = 3,329.84

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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.