Home / 4,068.78-5,614.86-2,205.78

Finding the Fourth Proportional to 4,068.78, 5,614.86 and 2,205.78

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Solution

The fourth proportional to 4,068.78, 5,614.86 and 2,205.78 is: 3,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,068.78 : 5,614.86 = 2,205.78 : x
  2. Step 2: Convert to fraction form
    4,068.78/5,614.86 = 2,205.78/x
  3. Step 3: Cross multiply
    4,068.78x = 5,614.86 × 2,205.78
  4. Step 4: Simplify right side
    4,068.78x = 12,385,145.89
  5. Step 5: Solve for x
    x = 12,385,145.89/4,068.78
  6. Step 6: Final answer
    x = 3,043.95

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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.