Home / 5,680.47-7,838.97-3,162.51

Finding the Fourth Proportional to 5,680.47, 7,838.97 and 3,162.51

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Solution

The fourth proportional to 5,680.47, 7,838.97 and 3,162.51 is: 4,364.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.47 : 7,838.97 = 3,162.51 : x
  2. Step 2: Convert to fraction form
    5,680.47/7,838.97 = 3,162.51/x
  3. Step 3: Cross multiply
    5,680.47x = 7,838.97 × 3,162.51
  4. Step 4: Simplify right side
    5,680.47x = 24,790,821.01
  5. Step 5: Solve for x
    x = 24,790,821.01/5,680.47
  6. Step 6: Final answer
    x = 4,364.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.