Home / 6,818.16-10,218.96-3,115.20

Finding the Fourth Proportional to 6,818.16, 10,218.96 and 3,115.20

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Solution

The fourth proportional to 6,818.16, 10,218.96 and 3,115.20 is: 4,669.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.16 : 10,218.96 = 3,115.20 : x
  2. Step 2: Convert to fraction form
    6,818.16/10,218.96 = 3,115.20/x
  3. Step 3: Cross multiply
    6,818.16x = 10,218.96 × 3,115.20
  4. Step 4: Simplify right side
    6,818.16x = 31,834,104.19
  5. Step 5: Solve for x
    x = 31,834,104.19/6,818.16
  6. Step 6: Final answer
    x = 4,669.02

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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.