Home / 5,188.78-7,160.57-2,950.62

Finding the Fourth Proportional to 5,188.78, 7,160.57 and 2,950.62

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Solution

The fourth proportional to 5,188.78, 7,160.57 and 2,950.62 is: 4,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.78 : 7,160.57 = 2,950.62 : x
  2. Step 2: Convert to fraction form
    5,188.78/7,160.57 = 2,950.62/x
  3. Step 3: Cross multiply
    5,188.78x = 7,160.57 × 2,950.62
  4. Step 4: Simplify right side
    5,188.78x = 21,128,121.05
  5. Step 5: Solve for x
    x = 21,128,121.05/5,188.78
  6. Step 6: Final answer
    x = 4,071.89

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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.