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Finding the Fourth Proportional to 2,763.56, 3,813.54 and 1,521.56

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Solution

The fourth proportional to 2,763.56, 3,813.54 and 1,521.56 is: 2,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.56 : 3,813.54 = 1,521.56 : x
  2. Step 2: Convert to fraction form
    2,763.56/3,813.54 = 1,521.56/x
  3. Step 3: Cross multiply
    2,763.56x = 3,813.54 × 1,521.56
  4. Step 4: Simplify right side
    2,763.56x = 5,802,529.92
  5. Step 5: Solve for x
    x = 5,802,529.92/2,763.56
  6. Step 6: Final answer
    x = 2,099.66

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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.