Home / 7,071.79-10,609.20-2,391.57

Finding the Fourth Proportional to 7,071.79, 10,609.20 and 2,391.57

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Solution

The fourth proportional to 7,071.79, 10,609.20 and 2,391.57 is: 3,587.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.79 : 10,609.20 = 2,391.57 : x
  2. Step 2: Convert to fraction form
    7,071.79/10,609.20 = 2,391.57/x
  3. Step 3: Cross multiply
    7,071.79x = 10,609.20 × 2,391.57
  4. Step 4: Simplify right side
    7,071.79x = 25,372,621.33
  5. Step 5: Solve for x
    x = 25,372,621.33/7,071.79
  6. Step 6: Final answer
    x = 3,587.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.