Home / 7,089.19-10,613.78-3,749.87

Finding the Fourth Proportional to 7,089.19, 10,613.78 and 3,749.87

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Solution

The fourth proportional to 7,089.19, 10,613.78 and 3,749.87 is: 5,614.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.19 : 10,613.78 = 3,749.87 : x
  2. Step 2: Convert to fraction form
    7,089.19/10,613.78 = 3,749.87/x
  3. Step 3: Cross multiply
    7,089.19x = 10,613.78 × 3,749.87
  4. Step 4: Simplify right side
    7,089.19x = 39,800,331.12
  5. Step 5: Solve for x
    x = 39,800,331.12/7,089.19
  6. Step 6: Final answer
    x = 5,614.23

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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.