Home / 6,278.38-9,411.81-2,171.50

Finding the Fourth Proportional to 6,278.38, 9,411.81 and 2,171.50

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Solution

The fourth proportional to 6,278.38, 9,411.81 and 2,171.50 is: 3,255.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.38 : 9,411.81 = 2,171.50 : x
  2. Step 2: Convert to fraction form
    6,278.38/9,411.81 = 2,171.50/x
  3. Step 3: Cross multiply
    6,278.38x = 9,411.81 × 2,171.50
  4. Step 4: Simplify right side
    6,278.38x = 20,437,745.42
  5. Step 5: Solve for x
    x = 20,437,745.42/6,278.38
  6. Step 6: Final answer
    x = 3,255.26

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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.