Home / 6,515.08-9,772.30-2,131.96

Finding the Fourth Proportional to 6,515.08, 9,772.30 and 2,131.96

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Solution

The fourth proportional to 6,515.08, 9,772.30 and 2,131.96 is: 3,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.08 : 9,772.30 = 2,131.96 : x
  2. Step 2: Convert to fraction form
    6,515.08/9,772.30 = 2,131.96/x
  3. Step 3: Cross multiply
    6,515.08x = 9,772.30 × 2,131.96
  4. Step 4: Simplify right side
    6,515.08x = 20,834,152.71
  5. Step 5: Solve for x
    x = 20,834,152.71/6,515.08
  6. Step 6: Final answer
    x = 3,197.84

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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.