Home / 5,719.43-7,886.21-4,200.09

Finding the Fourth Proportional to 5,719.43, 7,886.21 and 4,200.09

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Solution

The fourth proportional to 5,719.43, 7,886.21 and 4,200.09 is: 5,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.43 : 7,886.21 = 4,200.09 : x
  2. Step 2: Convert to fraction form
    5,719.43/7,886.21 = 4,200.09/x
  3. Step 3: Cross multiply
    5,719.43x = 7,886.21 × 4,200.09
  4. Step 4: Simplify right side
    5,719.43x = 33,122,770.76
  5. Step 5: Solve for x
    x = 33,122,770.76/5,719.43
  6. Step 6: Final answer
    x = 5,791.28

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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.