Home / 4,218.78-6,328.21-2,767.13

Finding the Fourth Proportional to 4,218.78, 6,328.21 and 2,767.13

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Solution

The fourth proportional to 4,218.78, 6,328.21 and 2,767.13 is: 4,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.78 : 6,328.21 = 2,767.13 : x
  2. Step 2: Convert to fraction form
    4,218.78/6,328.21 = 2,767.13/x
  3. Step 3: Cross multiply
    4,218.78x = 6,328.21 × 2,767.13
  4. Step 4: Simplify right side
    4,218.78x = 17,510,979.74
  5. Step 5: Solve for x
    x = 17,510,979.74/4,218.78
  6. Step 6: Final answer
    x = 4,150.72

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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.