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Finding the Fourth Proportional to 2,754.57, 3,799.51 and 1,811.23

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Solution

The fourth proportional to 2,754.57, 3,799.51 and 1,811.23 is: 2,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.57 : 3,799.51 = 1,811.23 : x
  2. Step 2: Convert to fraction form
    2,754.57/3,799.51 = 1,811.23/x
  3. Step 3: Cross multiply
    2,754.57x = 3,799.51 × 1,811.23
  4. Step 4: Simplify right side
    2,754.57x = 6,881,772.47
  5. Step 5: Solve for x
    x = 6,881,772.47/2,754.57
  6. Step 6: Final answer
    x = 2,498.31

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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.