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Finding the Fourth Proportional to 2,489.70, 3,454.41 and 2,468.51

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Solution

The fourth proportional to 2,489.70, 3,454.41 and 2,468.51 is: 3,425.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.70 : 3,454.41 = 2,468.51 : x
  2. Step 2: Convert to fraction form
    2,489.70/3,454.41 = 2,468.51/x
  3. Step 3: Cross multiply
    2,489.70x = 3,454.41 × 2,468.51
  4. Step 4: Simplify right side
    2,489.70x = 8,527,228.36
  5. Step 5: Solve for x
    x = 8,527,228.36/2,489.70
  6. Step 6: Final answer
    x = 3,425.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.