Home / 2,639.33-3,635.93-2,219.69

Finding the Fourth Proportional to 2,639.33, 3,635.93 and 2,219.69

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Solution

The fourth proportional to 2,639.33, 3,635.93 and 2,219.69 is: 3,057.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.33 : 3,635.93 = 2,219.69 : x
  2. Step 2: Convert to fraction form
    2,639.33/3,635.93 = 2,219.69/x
  3. Step 3: Cross multiply
    2,639.33x = 3,635.93 × 2,219.69
  4. Step 4: Simplify right side
    2,639.33x = 8,070,608.18
  5. Step 5: Solve for x
    x = 8,070,608.18/2,639.33
  6. Step 6: Final answer
    x = 3,057.83

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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.