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Finding the Fourth Proportional to 6,519.59, 8,998.28 and 3,868.46

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Solution

The fourth proportional to 6,519.59, 8,998.28 and 3,868.46 is: 5,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.59 : 8,998.28 = 3,868.46 : x
  2. Step 2: Convert to fraction form
    6,519.59/8,998.28 = 3,868.46/x
  3. Step 3: Cross multiply
    6,519.59x = 8,998.28 × 3,868.46
  4. Step 4: Simplify right side
    6,519.59x = 34,809,421.92
  5. Step 5: Solve for x
    x = 34,809,421.92/6,519.59
  6. Step 6: Final answer
    x = 5,339.21

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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.