Home / 3,687.51-5,531.40-1,090.65

Finding the Fourth Proportional to 3,687.51, 5,531.40 and 1,090.65

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Solution

The fourth proportional to 3,687.51, 5,531.40 and 1,090.65 is: 1,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.51 : 5,531.40 = 1,090.65 : x
  2. Step 2: Convert to fraction form
    3,687.51/5,531.40 = 1,090.65/x
  3. Step 3: Cross multiply
    3,687.51x = 5,531.40 × 1,090.65
  4. Step 4: Simplify right side
    3,687.51x = 6,032,821.41
  5. Step 5: Solve for x
    x = 6,032,821.41/3,687.51
  6. Step 6: Final answer
    x = 1,636.01

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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.