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Finding the Fourth Proportional to 3,339.15, 4,608.15 and 2,218.15

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Solution

The fourth proportional to 3,339.15, 4,608.15 and 2,218.15 is: 3,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.15 : 4,608.15 = 2,218.15 : x
  2. Step 2: Convert to fraction form
    3,339.15/4,608.15 = 2,218.15/x
  3. Step 3: Cross multiply
    3,339.15x = 4,608.15 × 2,218.15
  4. Step 4: Simplify right side
    3,339.15x = 10,221,567.92
  5. Step 5: Solve for x
    x = 10,221,567.92/3,339.15
  6. Step 6: Final answer
    x = 3,061.13

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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.