Home / 5,005.78-6,908.02-2,767.68

Finding the Fourth Proportional to 5,005.78, 6,908.02 and 2,767.68

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Solution

The fourth proportional to 5,005.78, 6,908.02 and 2,767.68 is: 3,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.78 : 6,908.02 = 2,767.68 : x
  2. Step 2: Convert to fraction form
    5,005.78/6,908.02 = 2,767.68/x
  3. Step 3: Cross multiply
    5,005.78x = 6,908.02 × 2,767.68
  4. Step 4: Simplify right side
    5,005.78x = 19,119,188.79
  5. Step 5: Solve for x
    x = 19,119,188.79/5,005.78
  6. Step 6: Final answer
    x = 3,819.42

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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.