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Finding the Fourth Proportional to 3,617.04, 4,991.48 and 1,961.04

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Solution

The fourth proportional to 3,617.04, 4,991.48 and 1,961.04 is: 2,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.04 : 4,991.48 = 1,961.04 : x
  2. Step 2: Convert to fraction form
    3,617.04/4,991.48 = 1,961.04/x
  3. Step 3: Cross multiply
    3,617.04x = 4,991.48 × 1,961.04
  4. Step 4: Simplify right side
    3,617.04x = 9,788,491.94
  5. Step 5: Solve for x
    x = 9,788,491.94/3,617.04
  6. Step 6: Final answer
    x = 2,706.22

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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.