Home / 5,188.78-7,160.72-2,950.58

Finding the Fourth Proportional to 5,188.78, 7,160.72 and 2,950.58

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Solution

The fourth proportional to 5,188.78, 7,160.72 and 2,950.58 is: 4,071.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.78 : 7,160.72 = 2,950.58 : x
  2. Step 2: Convert to fraction form
    5,188.78/7,160.72 = 2,950.58/x
  3. Step 3: Cross multiply
    5,188.78x = 7,160.72 × 2,950.58
  4. Step 4: Simplify right side
    5,188.78x = 21,128,277.22
  5. Step 5: Solve for x
    x = 21,128,277.22/5,188.78
  6. Step 6: Final answer
    x = 4,071.92

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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.