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Finding the Fourth Proportional to 3,669.03, 5,063.24 and 1,990.49

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Solution

The fourth proportional to 3,669.03, 5,063.24 and 1,990.49 is: 2,746.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.03 : 5,063.24 = 1,990.49 : x
  2. Step 2: Convert to fraction form
    3,669.03/5,063.24 = 1,990.49/x
  3. Step 3: Cross multiply
    3,669.03x = 5,063.24 × 1,990.49
  4. Step 4: Simplify right side
    3,669.03x = 10,078,293.32
  5. Step 5: Solve for x
    x = 10,078,293.32/3,669.03
  6. Step 6: Final answer
    x = 2,746.85

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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.