Home / 4,787.12-7,188.60-3,617.12

Finding the Fourth Proportional to 4,787.12, 7,188.60 and 3,617.12

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Solution

The fourth proportional to 4,787.12, 7,188.60 and 3,617.12 is: 5,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.12 : 7,188.60 = 3,617.12 : x
  2. Step 2: Convert to fraction form
    4,787.12/7,188.60 = 3,617.12/x
  3. Step 3: Cross multiply
    4,787.12x = 7,188.60 × 3,617.12
  4. Step 4: Simplify right side
    4,787.12x = 26,002,028.83
  5. Step 5: Solve for x
    x = 26,002,028.83/4,787.12
  6. Step 6: Final answer
    x = 5,431.66

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1.5x scale

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.