Home / 6,961.95-10,432.73-3,991.28

Finding the Fourth Proportional to 6,961.95, 10,432.73 and 3,991.28

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Solution

The fourth proportional to 6,961.95, 10,432.73 and 3,991.28 is: 5,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,961.95 : 10,432.73 = 3,991.28 : x
  2. Step 2: Convert to fraction form
    6,961.95/10,432.73 = 3,991.28/x
  3. Step 3: Cross multiply
    6,961.95x = 10,432.73 × 3,991.28
  4. Step 4: Simplify right side
    6,961.95x = 41,639,904.41
  5. Step 5: Solve for x
    x = 41,639,904.41/6,961.95
  6. Step 6: Final answer
    x = 5,981.07

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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.