Home / 5,311.23-7,966.98-2,986.08

Finding the Fourth Proportional to 5,311.23, 7,966.98 and 2,986.08

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Solution

The fourth proportional to 5,311.23, 7,966.98 and 2,986.08 is: 4,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.23 : 7,966.98 = 2,986.08 : x
  2. Step 2: Convert to fraction form
    5,311.23/7,966.98 = 2,986.08/x
  3. Step 3: Cross multiply
    5,311.23x = 7,966.98 × 2,986.08
  4. Step 4: Simplify right side
    5,311.23x = 23,790,039.64
  5. Step 5: Solve for x
    x = 23,790,039.64/5,311.23
  6. Step 6: Final answer
    x = 4,479.20

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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.