Home / 4,269.28-6,403.56-1,960.78

Finding the Fourth Proportional to 4,269.28, 6,403.56 and 1,960.78

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Solution

The fourth proportional to 4,269.28, 6,403.56 and 1,960.78 is: 2,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,269.28 : 6,403.56 = 1,960.78 : x
  2. Step 2: Convert to fraction form
    4,269.28/6,403.56 = 1,960.78/x
  3. Step 3: Cross multiply
    4,269.28x = 6,403.56 × 1,960.78
  4. Step 4: Simplify right side
    4,269.28x = 12,555,972.38
  5. Step 5: Solve for x
    x = 12,555,972.38/4,269.28
  6. Step 6: Final answer
    x = 2,941.00

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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.