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Finding the Fourth Proportional to 2,730.51, 3,768.21 and 1,551.69

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Solution

The fourth proportional to 2,730.51, 3,768.21 and 1,551.69 is: 2,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.51 : 3,768.21 = 1,551.69 : x
  2. Step 2: Convert to fraction form
    2,730.51/3,768.21 = 1,551.69/x
  3. Step 3: Cross multiply
    2,730.51x = 3,768.21 × 1,551.69
  4. Step 4: Simplify right side
    2,730.51x = 5,847,093.77
  5. Step 5: Solve for x
    x = 5,847,093.77/2,730.51
  6. Step 6: Final answer
    x = 2,141.39

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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.