Home / 3,687.42-5,531.12-1,090.56

Finding the Fourth Proportional to 3,687.42, 5,531.12 and 1,090.56

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Solution

The fourth proportional to 3,687.42, 5,531.12 and 1,090.56 is: 1,635.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.42 : 5,531.12 = 1,090.56 : x
  2. Step 2: Convert to fraction form
    3,687.42/5,531.12 = 1,090.56/x
  3. Step 3: Cross multiply
    3,687.42x = 5,531.12 × 1,090.56
  4. Step 4: Simplify right side
    3,687.42x = 6,032,018.23
  5. Step 5: Solve for x
    x = 6,032,018.23/3,687.42
  6. Step 6: Final answer
    x = 1,635.84

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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.