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Finding the Fourth Proportional to 2,468.80, 3,406.84 and 1,349.76

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Solution

The fourth proportional to 2,468.80, 3,406.84 and 1,349.76 is: 1,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,468.80 : 3,406.84 = 1,349.76 : x
  2. Step 2: Convert to fraction form
    2,468.80/3,406.84 = 1,349.76/x
  3. Step 3: Cross multiply
    2,468.80x = 3,406.84 × 1,349.76
  4. Step 4: Simplify right side
    2,468.80x = 4,598,416.36
  5. Step 5: Solve for x
    x = 4,598,416.36/2,468.80
  6. Step 6: Final answer
    x = 1,862.61

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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.