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Finding the Fourth Proportional to 3,663.98, 5,494.86 and 1,323.70

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Solution

The fourth proportional to 3,663.98, 5,494.86 and 1,323.70 is: 1,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.98 : 5,494.86 = 1,323.70 : x
  2. Step 2: Convert to fraction form
    3,663.98/5,494.86 = 1,323.70/x
  3. Step 3: Cross multiply
    3,663.98x = 5,494.86 × 1,323.70
  4. Step 4: Simplify right side
    3,663.98x = 7,273,546.18
  5. Step 5: Solve for x
    x = 7,273,546.18/3,663.98
  6. Step 6: Final answer
    x = 1,985.15

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1.5x scale

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.