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Finding the Fourth Proportional to 7,241.88, 10,862.82 and 3,345.78

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Solution

The fourth proportional to 7,241.88, 10,862.82 and 3,345.78 is: 5,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.88 : 10,862.82 = 3,345.78 : x
  2. Step 2: Convert to fraction form
    7,241.88/10,862.82 = 3,345.78/x
  3. Step 3: Cross multiply
    7,241.88x = 10,862.82 × 3,345.78
  4. Step 4: Simplify right side
    7,241.88x = 36,344,605.90
  5. Step 5: Solve for x
    x = 36,344,605.90/7,241.88
  6. Step 6: Final answer
    x = 5,018.67

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1.5x scale

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.