Home / 7,043.89-9,719.38-4,212.42

Finding the Fourth Proportional to 7,043.89, 9,719.38 and 4,212.42

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Solution

The fourth proportional to 7,043.89, 9,719.38 and 4,212.42 is: 5,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043.89 : 9,719.38 = 4,212.42 : x
  2. Step 2: Convert to fraction form
    7,043.89/9,719.38 = 4,212.42/x
  3. Step 3: Cross multiply
    7,043.89x = 9,719.38 × 4,212.42
  4. Step 4: Simplify right side
    7,043.89x = 40,942,110.70
  5. Step 5: Solve for x
    x = 40,942,110.70/7,043.89
  6. Step 6: Final answer
    x = 5,812.43

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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.