Home / 6,621.17-9,137.85-3,787.98

Finding the Fourth Proportional to 6,621.17, 9,137.85 and 3,787.98

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Solution

The fourth proportional to 6,621.17, 9,137.85 and 3,787.98 is: 5,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.17 : 9,137.85 = 3,787.98 : x
  2. Step 2: Convert to fraction form
    6,621.17/9,137.85 = 3,787.98/x
  3. Step 3: Cross multiply
    6,621.17x = 9,137.85 × 3,787.98
  4. Step 4: Simplify right side
    6,621.17x = 34,614,041.51
  5. Step 5: Solve for x
    x = 34,614,041.51/6,621.17
  6. Step 6: Final answer
    x = 5,227.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.