Home / 5,418.55-8,128.69-2,298.57

Finding the Fourth Proportional to 5,418.55, 8,128.69 and 2,298.57

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Solution

The fourth proportional to 5,418.55, 8,128.69 and 2,298.57 is: 3,448.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.55 : 8,128.69 = 2,298.57 : x
  2. Step 2: Convert to fraction form
    5,418.55/8,128.69 = 2,298.57/x
  3. Step 3: Cross multiply
    5,418.55x = 8,128.69 × 2,298.57
  4. Step 4: Simplify right side
    5,418.55x = 18,684,351.48
  5. Step 5: Solve for x
    x = 18,684,351.48/5,418.55
  6. Step 6: Final answer
    x = 3,448.22

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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.