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Finding the Fourth Proportional to 2,406.84, 3,321.12 and 1,344.48

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Solution

The fourth proportional to 2,406.84, 3,321.12 and 1,344.48 is: 1,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.84 : 3,321.12 = 1,344.48 : x
  2. Step 2: Convert to fraction form
    2,406.84/3,321.12 = 1,344.48/x
  3. Step 3: Cross multiply
    2,406.84x = 3,321.12 × 1,344.48
  4. Step 4: Simplify right side
    2,406.84x = 4,465,168.65
  5. Step 5: Solve for x
    x = 4,465,168.65/2,406.84
  6. Step 6: Final answer
    x = 1,855.20

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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.