Home / 3,687.39-5,530.55-1,090.53

Finding the Fourth Proportional to 3,687.39, 5,530.55 and 1,090.53

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Solution

The fourth proportional to 3,687.39, 5,530.55 and 1,090.53 is: 1,635.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.39 : 5,530.55 = 1,090.53 : x
  2. Step 2: Convert to fraction form
    3,687.39/5,530.55 = 1,090.53/x
  3. Step 3: Cross multiply
    3,687.39x = 5,530.55 × 1,090.53
  4. Step 4: Simplify right side
    3,687.39x = 6,031,225.24
  5. Step 5: Solve for x
    x = 6,031,225.24/3,687.39
  6. Step 6: Final answer
    x = 1,635.64

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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.