Home / 3,890.40-5,837.88-1,699.44

Finding the Fourth Proportional to 3,890.40, 5,837.88 and 1,699.44

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Solution

The fourth proportional to 3,890.40, 5,837.88 and 1,699.44 is: 2,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.40 : 5,837.88 = 1,699.44 : x
  2. Step 2: Convert to fraction form
    3,890.40/5,837.88 = 1,699.44/x
  3. Step 3: Cross multiply
    3,890.40x = 5,837.88 × 1,699.44
  4. Step 4: Simplify right side
    3,890.40x = 9,921,126.79
  5. Step 5: Solve for x
    x = 9,921,126.79/3,890.40
  6. Step 6: Final answer
    x = 2,550.16

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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.