Home / 5,415.23-8,117.27-2,949.39

Finding the Fourth Proportional to 5,415.23, 8,117.27 and 2,949.39

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Solution

The fourth proportional to 5,415.23, 8,117.27 and 2,949.39 is: 4,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.23 : 8,117.27 = 2,949.39 : x
  2. Step 2: Convert to fraction form
    5,415.23/8,117.27 = 2,949.39/x
  3. Step 3: Cross multiply
    5,415.23x = 8,117.27 × 2,949.39
  4. Step 4: Simplify right side
    5,415.23x = 23,940,994.97
  5. Step 5: Solve for x
    x = 23,940,994.97/5,415.23
  6. Step 6: Final answer
    x = 4,421.05

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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.