Home / 5,680.31-7,838.76-3,162.38

Finding the Fourth Proportional to 5,680.31, 7,838.76 and 3,162.38

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Solution

The fourth proportional to 5,680.31, 7,838.76 and 3,162.38 is: 4,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.31 : 7,838.76 = 3,162.38 : x
  2. Step 2: Convert to fraction form
    5,680.31/7,838.76 = 3,162.38/x
  3. Step 3: Cross multiply
    5,680.31x = 7,838.76 × 3,162.38
  4. Step 4: Simplify right side
    5,680.31x = 24,789,137.85
  5. Step 5: Solve for x
    x = 24,789,137.85/5,680.31
  6. Step 6: Final answer
    x = 4,364.05

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1.5x scale

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.