Home / 7,399.89-10,211.90-4,042.64

Finding the Fourth Proportional to 7,399.89, 10,211.90 and 4,042.64

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Solution

The fourth proportional to 7,399.89, 10,211.90 and 4,042.64 is: 5,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.89 : 10,211.90 = 4,042.64 : x
  2. Step 2: Convert to fraction form
    7,399.89/10,211.90 = 4,042.64/x
  3. Step 3: Cross multiply
    7,399.89x = 10,211.90 × 4,042.64
  4. Step 4: Simplify right side
    7,399.89x = 41,283,035.42
  5. Step 5: Solve for x
    x = 41,283,035.42/7,399.89
  6. Step 6: Final answer
    x = 5,578.87

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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.