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Finding the Fourth Proportional to 1,902.92, 2,853.26 and 1,686.92

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Solution

The fourth proportional to 1,902.92, 2,853.26 and 1,686.92 is: 2,529.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.92 : 2,853.26 = 1,686.92 : x
  2. Step 2: Convert to fraction form
    1,902.92/2,853.26 = 1,686.92/x
  3. Step 3: Cross multiply
    1,902.92x = 2,853.26 × 1,686.92
  4. Step 4: Simplify right side
    1,902.92x = 4,813,221.36
  5. Step 5: Solve for x
    x = 4,813,221.36/1,902.92
  6. Step 6: Final answer
    x = 2,529.39

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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.