Home / 4,642.39-6,963.94-1,720.72

Finding the Fourth Proportional to 4,642.39, 6,963.94 and 1,720.72

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Solution

The fourth proportional to 4,642.39, 6,963.94 and 1,720.72 is: 2,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642.39 : 6,963.94 = 1,720.72 : x
  2. Step 2: Convert to fraction form
    4,642.39/6,963.94 = 1,720.72/x
  3. Step 3: Cross multiply
    4,642.39x = 6,963.94 × 1,720.72
  4. Step 4: Simplify right side
    4,642.39x = 11,982,990.84
  5. Step 5: Solve for x
    x = 11,982,990.84/4,642.39
  6. Step 6: Final answer
    x = 2,581.21

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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.