Home / 5,389.16-8,072.38-2,469.92

Finding the Fourth Proportional to 5,389.16, 8,072.38 and 2,469.92

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Solution

The fourth proportional to 5,389.16, 8,072.38 and 2,469.92 is: 3,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.16 : 8,072.38 = 2,469.92 : x
  2. Step 2: Convert to fraction form
    5,389.16/8,072.38 = 2,469.92/x
  3. Step 3: Cross multiply
    5,389.16x = 8,072.38 × 2,469.92
  4. Step 4: Simplify right side
    5,389.16x = 19,938,132.81
  5. Step 5: Solve for x
    x = 19,938,132.81/5,389.16
  6. Step 6: Final answer
    x = 3,699.67

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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.