Home / 3,690.10-5,531.14-1,817.28

Finding the Fourth Proportional to 3,690.10, 5,531.14 and 1,817.28

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Solution

The fourth proportional to 3,690.10, 5,531.14 and 1,817.28 is: 2,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.10 : 5,531.14 = 1,817.28 : x
  2. Step 2: Convert to fraction form
    3,690.10/5,531.14 = 1,817.28/x
  3. Step 3: Cross multiply
    3,690.10x = 5,531.14 × 1,817.28
  4. Step 4: Simplify right side
    3,690.10x = 10,051,593.36
  5. Step 5: Solve for x
    x = 10,051,593.36/3,690.10
  6. Step 6: Final answer
    x = 2,723.94

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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.