Home / 6,731.36-9,290.64-3,937.76

Finding the Fourth Proportional to 6,731.36, 9,290.64 and 3,937.76

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Solution

The fourth proportional to 6,731.36, 9,290.64 and 3,937.76 is: 5,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,731.36 : 9,290.64 = 3,937.76 : x
  2. Step 2: Convert to fraction form
    6,731.36/9,290.64 = 3,937.76/x
  3. Step 3: Cross multiply
    6,731.36x = 9,290.64 × 3,937.76
  4. Step 4: Simplify right side
    6,731.36x = 36,584,310.57
  5. Step 5: Solve for x
    x = 36,584,310.57/6,731.36
  6. Step 6: Final answer
    x = 5,434.91

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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.