Home / 4,817.79-6,640.86-3,243.15

Finding the Fourth Proportional to 4,817.79, 6,640.86 and 3,243.15

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Solution

The fourth proportional to 4,817.79, 6,640.86 and 3,243.15 is: 4,470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817.79 : 6,640.86 = 3,243.15 : x
  2. Step 2: Convert to fraction form
    4,817.79/6,640.86 = 3,243.15/x
  3. Step 3: Cross multiply
    4,817.79x = 6,640.86 × 3,243.15
  4. Step 4: Simplify right side
    4,817.79x = 21,537,305.11
  5. Step 5: Solve for x
    x = 21,537,305.11/4,817.79
  6. Step 6: Final answer
    x = 4,470.37

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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.