Home / 5,680.20-7,838.34-3,162.19

Finding the Fourth Proportional to 5,680.20, 7,838.34 and 3,162.19

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Solution

The fourth proportional to 5,680.20, 7,838.34 and 3,162.19 is: 4,363.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.20 : 7,838.34 = 3,162.19 : x
  2. Step 2: Convert to fraction form
    5,680.20/7,838.34 = 3,162.19/x
  3. Step 3: Cross multiply
    5,680.20x = 7,838.34 × 3,162.19
  4. Step 4: Simplify right side
    5,680.20x = 24,786,330.29
  5. Step 5: Solve for x
    x = 24,786,330.29/5,680.20
  6. Step 6: Final answer
    x = 4,363.64

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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.