Home / 4,128.05-6,195.02-2,278.68

Finding the Fourth Proportional to 4,128.05, 6,195.02 and 2,278.68

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Solution

The fourth proportional to 4,128.05, 6,195.02 and 2,278.68 is: 3,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.05 : 6,195.02 = 2,278.68 : x
  2. Step 2: Convert to fraction form
    4,128.05/6,195.02 = 2,278.68/x
  3. Step 3: Cross multiply
    4,128.05x = 6,195.02 × 2,278.68
  4. Step 4: Simplify right side
    4,128.05x = 14,116,456.78
  5. Step 5: Solve for x
    x = 14,116,456.78/4,128.05
  6. Step 6: Final answer
    x = 3,419.65

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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.