Home / 5,418.47-8,129.53-2,298.35

Finding the Fourth Proportional to 5,418.47, 8,129.53 and 2,298.35

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Solution

The fourth proportional to 5,418.47, 8,129.53 and 2,298.35 is: 3,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.47 : 8,129.53 = 2,298.35 : x
  2. Step 2: Convert to fraction form
    5,418.47/8,129.53 = 2,298.35/x
  3. Step 3: Cross multiply
    5,418.47x = 8,129.53 × 2,298.35
  4. Step 4: Simplify right side
    5,418.47x = 18,684,505.28
  5. Step 5: Solve for x
    x = 18,684,505.28/5,418.47
  6. Step 6: Final answer
    x = 3,448.30

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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.