Home / 5,418.77-8,128.98-2,298.79

Finding the Fourth Proportional to 5,418.77, 8,128.98 and 2,298.79

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Solution

The fourth proportional to 5,418.77, 8,128.98 and 2,298.79 is: 3,448.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.77 : 8,128.98 = 2,298.79 : x
  2. Step 2: Convert to fraction form
    5,418.77/8,128.98 = 2,298.79/x
  3. Step 3: Cross multiply
    5,418.77x = 8,128.98 × 2,298.79
  4. Step 4: Simplify right side
    5,418.77x = 18,686,817.93
  5. Step 5: Solve for x
    x = 18,686,817.93/5,418.77
  6. Step 6: Final answer
    x = 3,448.53

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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.