Home / 6,981.28-9,633.80-3,836.86

Finding the Fourth Proportional to 6,981.28, 9,633.80 and 3,836.86

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Solution

The fourth proportional to 6,981.28, 9,633.80 and 3,836.86 is: 5,294.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.28 : 9,633.80 = 3,836.86 : x
  2. Step 2: Convert to fraction form
    6,981.28/9,633.80 = 3,836.86/x
  3. Step 3: Cross multiply
    6,981.28x = 9,633.80 × 3,836.86
  4. Step 4: Simplify right side
    6,981.28x = 36,963,541.87
  5. Step 5: Solve for x
    x = 36,963,541.87/6,981.28
  6. Step 6: Final answer
    x = 5,294.67

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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.