Home / 6,684.31-9,226.78-3,889.81

Finding the Fourth Proportional to 6,684.31, 9,226.78 and 3,889.81

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Solution

The fourth proportional to 6,684.31, 9,226.78 and 3,889.81 is: 5,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,684.31 : 9,226.78 = 3,889.81 : x
  2. Step 2: Convert to fraction form
    6,684.31/9,226.78 = 3,889.81/x
  3. Step 3: Cross multiply
    6,684.31x = 9,226.78 × 3,889.81
  4. Step 4: Simplify right side
    6,684.31x = 35,890,421.11
  5. Step 5: Solve for x
    x = 35,890,421.11/6,684.31
  6. Step 6: Final answer
    x = 5,369.35

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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.