Home / 5,442.98-8,165.89-2,811.28

Finding the Fourth Proportional to 5,442.98, 8,165.89 and 2,811.28

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Solution

The fourth proportional to 5,442.98, 8,165.89 and 2,811.28 is: 4,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,442.98 : 8,165.89 = 2,811.28 : x
  2. Step 2: Convert to fraction form
    5,442.98/8,165.89 = 2,811.28/x
  3. Step 3: Cross multiply
    5,442.98x = 8,165.89 × 2,811.28
  4. Step 4: Simplify right side
    5,442.98x = 22,956,603.24
  5. Step 5: Solve for x
    x = 22,956,603.24/5,442.98
  6. Step 6: Final answer
    x = 4,217.65

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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.