Home / 6,981.30-9,633.60-3,837.60

Finding the Fourth Proportional to 6,981.30, 9,633.60 and 3,837.60

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Solution

The fourth proportional to 6,981.30, 9,633.60 and 3,837.60 is: 5,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.30 : 9,633.60 = 3,837.60 : x
  2. Step 2: Convert to fraction form
    6,981.30/9,633.60 = 3,837.60/x
  3. Step 3: Cross multiply
    6,981.30x = 9,633.60 × 3,837.60
  4. Step 4: Simplify right side
    6,981.30x = 36,969,903.36
  5. Step 5: Solve for x
    x = 36,969,903.36/6,981.30
  6. Step 6: Final answer
    x = 5,295.56

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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.