Home / 3,435.16-5,149.68-1,243.40

Finding the Fourth Proportional to 3,435.16, 5,149.68 and 1,243.40

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Solution

The fourth proportional to 3,435.16, 5,149.68 and 1,243.40 is: 1,863.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.16 : 5,149.68 = 1,243.40 : x
  2. Step 2: Convert to fraction form
    3,435.16/5,149.68 = 1,243.40/x
  3. Step 3: Cross multiply
    3,435.16x = 5,149.68 × 1,243.40
  4. Step 4: Simplify right side
    3,435.16x = 6,403,112.11
  5. Step 5: Solve for x
    x = 6,403,112.11/3,435.16
  6. Step 6: Final answer
    x = 1,863.99

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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.