Home / 5,680.75-7,838.80-3,162.28

Finding the Fourth Proportional to 5,680.75, 7,838.80 and 3,162.28

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Solution

The fourth proportional to 5,680.75, 7,838.80 and 3,162.28 is: 4,363.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.75 : 7,838.80 = 3,162.28 : x
  2. Step 2: Convert to fraction form
    5,680.75/7,838.80 = 3,162.28/x
  3. Step 3: Cross multiply
    5,680.75x = 7,838.80 × 3,162.28
  4. Step 4: Simplify right side
    5,680.75x = 24,788,480.46
  5. Step 5: Solve for x
    x = 24,788,480.46/5,680.75
  6. Step 6: Final answer
    x = 4,363.59

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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.