Home / 5,135.43-7,687.41-3,656.51

Finding the Fourth Proportional to 5,135.43, 7,687.41 and 3,656.51

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Solution

The fourth proportional to 5,135.43, 7,687.41 and 3,656.51 is: 5,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.43 : 7,687.41 = 3,656.51 : x
  2. Step 2: Convert to fraction form
    5,135.43/7,687.41 = 3,656.51/x
  3. Step 3: Cross multiply
    5,135.43x = 7,687.41 × 3,656.51
  4. Step 4: Simplify right side
    5,135.43x = 28,109,053.10
  5. Step 5: Solve for x
    x = 28,109,053.10/5,135.43
  6. Step 6: Final answer
    x = 5,473.55

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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.