Home / 3,513.18-5,272.49-1,323.90

Finding the Fourth Proportional to 3,513.18, 5,272.49 and 1,323.90

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Solution

The fourth proportional to 3,513.18, 5,272.49 and 1,323.90 is: 1,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.18 : 5,272.49 = 1,323.90 : x
  2. Step 2: Convert to fraction form
    3,513.18/5,272.49 = 1,323.90/x
  3. Step 3: Cross multiply
    3,513.18x = 5,272.49 × 1,323.90
  4. Step 4: Simplify right side
    3,513.18x = 6,980,249.51
  5. Step 5: Solve for x
    x = 6,980,249.51/3,513.18
  6. Step 6: Final answer
    x = 1,986.87

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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.