Home / 6,620.38-9,135.77-3,787.45

Finding the Fourth Proportional to 6,620.38, 9,135.77 and 3,787.45

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Solution

The fourth proportional to 6,620.38, 9,135.77 and 3,787.45 is: 5,226.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.38 : 9,135.77 = 3,787.45 : x
  2. Step 2: Convert to fraction form
    6,620.38/9,135.77 = 3,787.45/x
  3. Step 3: Cross multiply
    6,620.38x = 9,135.77 × 3,787.45
  4. Step 4: Simplify right side
    6,620.38x = 34,601,230.31
  5. Step 5: Solve for x
    x = 34,601,230.31/6,620.38
  6. Step 6: Final answer
    x = 5,226.47

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1.5x scale

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.