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Finding the Fourth Proportional to 3,700.80, 5,551.74 and 1,361.93

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Solution

The fourth proportional to 3,700.80, 5,551.74 and 1,361.93 is: 2,043.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.80 : 5,551.74 = 1,361.93 : x
  2. Step 2: Convert to fraction form
    3,700.80/5,551.74 = 1,361.93/x
  3. Step 3: Cross multiply
    3,700.80x = 5,551.74 × 1,361.93
  4. Step 4: Simplify right side
    3,700.80x = 7,561,053.50
  5. Step 5: Solve for x
    x = 7,561,053.50/3,700.80
  6. Step 6: Final answer
    x = 2,043.09

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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.