Home / 3,188.57-4,783.30-1,338.53

Finding the Fourth Proportional to 3,188.57, 4,783.30 and 1,338.53

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Solution

The fourth proportional to 3,188.57, 4,783.30 and 1,338.53 is: 2,007.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.57 : 4,783.30 = 1,338.53 : x
  2. Step 2: Convert to fraction form
    3,188.57/4,783.30 = 1,338.53/x
  3. Step 3: Cross multiply
    3,188.57x = 4,783.30 × 1,338.53
  4. Step 4: Simplify right side
    3,188.57x = 6,402,563.29
  5. Step 5: Solve for x
    x = 6,402,563.29/3,188.57
  6. Step 6: Final answer
    x = 2,007.98

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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.