Home / 5,170.38-7,137.63-4,838.82

Finding the Fourth Proportional to 5,170.38, 7,137.63 and 4,838.82

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Solution

The fourth proportional to 5,170.38, 7,137.63 and 4,838.82 is: 6,679.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.38 : 7,137.63 = 4,838.82 : x
  2. Step 2: Convert to fraction form
    5,170.38/7,137.63 = 4,838.82/x
  3. Step 3: Cross multiply
    5,170.38x = 7,137.63 × 4,838.82
  4. Step 4: Simplify right side
    5,170.38x = 34,537,706.80
  5. Step 5: Solve for x
    x = 34,537,706.80/5,170.38
  6. Step 6: Final answer
    x = 6,679.92

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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.