Home / 5,486.13-8,229.47-3,145.51

Finding the Fourth Proportional to 5,486.13, 8,229.47 and 3,145.51

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Solution

The fourth proportional to 5,486.13, 8,229.47 and 3,145.51 is: 4,718.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.13 : 8,229.47 = 3,145.51 : x
  2. Step 2: Convert to fraction form
    5,486.13/8,229.47 = 3,145.51/x
  3. Step 3: Cross multiply
    5,486.13x = 8,229.47 × 3,145.51
  4. Step 4: Simplify right side
    5,486.13x = 25,885,878.13
  5. Step 5: Solve for x
    x = 25,885,878.13/5,486.13
  6. Step 6: Final answer
    x = 4,718.42

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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.