Home / 6,678.78-9,217.50-3,884.28

Finding the Fourth Proportional to 6,678.78, 9,217.50 and 3,884.28

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Solution

The fourth proportional to 6,678.78, 9,217.50 and 3,884.28 is: 5,360.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.78 : 9,217.50 = 3,884.28 : x
  2. Step 2: Convert to fraction form
    6,678.78/9,217.50 = 3,884.28/x
  3. Step 3: Cross multiply
    6,678.78x = 9,217.50 × 3,884.28
  4. Step 4: Simplify right side
    6,678.78x = 35,803,350.90
  5. Step 5: Solve for x
    x = 35,803,350.90/6,678.78
  6. Step 6: Final answer
    x = 5,360.76

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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.