Home / 5,743.38-8,609.13-3,140.76

Finding the Fourth Proportional to 5,743.38, 8,609.13 and 3,140.76

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Solution

The fourth proportional to 5,743.38, 8,609.13 and 3,140.76 is: 4,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,743.38 : 8,609.13 = 3,140.76 : x
  2. Step 2: Convert to fraction form
    5,743.38/8,609.13 = 3,140.76/x
  3. Step 3: Cross multiply
    5,743.38x = 8,609.13 × 3,140.76
  4. Step 4: Simplify right side
    5,743.38x = 27,039,211.14
  5. Step 5: Solve for x
    x = 27,039,211.14/5,743.38
  6. Step 6: Final answer
    x = 4,707.89

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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.