Home / 6,511.17-8,986.31-3,992.84

Finding the Fourth Proportional to 6,511.17, 8,986.31 and 3,992.84

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Solution

The fourth proportional to 6,511.17, 8,986.31 and 3,992.84 is: 5,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.17 : 8,986.31 = 3,992.84 : x
  2. Step 2: Convert to fraction form
    6,511.17/8,986.31 = 3,992.84/x
  3. Step 3: Cross multiply
    6,511.17x = 8,986.31 × 3,992.84
  4. Step 4: Simplify right side
    6,511.17x = 35,880,833.12
  5. Step 5: Solve for x
    x = 35,880,833.12/6,511.17
  6. Step 6: Final answer
    x = 5,510.66

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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.