Home / 5,680.32-7,838.78-3,162.44

Finding the Fourth Proportional to 5,680.32, 7,838.78 and 3,162.44

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Solution

The fourth proportional to 5,680.32, 7,838.78 and 3,162.44 is: 4,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.32 : 7,838.78 = 3,162.44 : x
  2. Step 2: Convert to fraction form
    5,680.32/7,838.78 = 3,162.44/x
  3. Step 3: Cross multiply
    5,680.32x = 7,838.78 × 3,162.44
  4. Step 4: Simplify right side
    5,680.32x = 24,789,616.42
  5. Step 5: Solve for x
    x = 24,789,616.42/5,680.32
  6. Step 6: Final answer
    x = 4,364.12

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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.