Home / 5,423.29-8,128.66-2,495.45

Finding the Fourth Proportional to 5,423.29, 8,128.66 and 2,495.45

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Solution

The fourth proportional to 5,423.29, 8,128.66 and 2,495.45 is: 3,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.29 : 8,128.66 = 2,495.45 : x
  2. Step 2: Convert to fraction form
    5,423.29/8,128.66 = 2,495.45/x
  3. Step 3: Cross multiply
    5,423.29x = 8,128.66 × 2,495.45
  4. Step 4: Simplify right side
    5,423.29x = 20,284,664.60
  5. Step 5: Solve for x
    x = 20,284,664.60/5,423.29
  6. Step 6: Final answer
    x = 3,740.29

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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.