Home / 4,903.91-6,767.39-2,665.78

Finding the Fourth Proportional to 4,903.91, 6,767.39 and 2,665.78

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Solution

The fourth proportional to 4,903.91, 6,767.39 and 2,665.78 is: 3,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.91 : 6,767.39 = 2,665.78 : x
  2. Step 2: Convert to fraction form
    4,903.91/6,767.39 = 2,665.78/x
  3. Step 3: Cross multiply
    4,903.91x = 6,767.39 × 2,665.78
  4. Step 4: Simplify right side
    4,903.91x = 18,040,372.91
  5. Step 5: Solve for x
    x = 18,040,372.91/4,903.91
  6. Step 6: Final answer
    x = 3,678.77

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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.