Home / 6,351.40-8,767.20-3,960.28

Finding the Fourth Proportional to 6,351.40, 8,767.20 and 3,960.28

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Solution

The fourth proportional to 6,351.40, 8,767.20 and 3,960.28 is: 5,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,351.40 : 8,767.20 = 3,960.28 : x
  2. Step 2: Convert to fraction form
    6,351.40/8,767.20 = 3,960.28/x
  3. Step 3: Cross multiply
    6,351.40x = 8,767.20 × 3,960.28
  4. Step 4: Simplify right side
    6,351.40x = 34,720,566.82
  5. Step 5: Solve for x
    x = 34,720,566.82/6,351.40
  6. Step 6: Final answer
    x = 5,466.60

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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.