Home / 5,321.39-7,983.18-1,623.90

Finding the Fourth Proportional to 5,321.39, 7,983.18 and 1,623.90

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Solution

The fourth proportional to 5,321.39, 7,983.18 and 1,623.90 is: 2,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.39 : 7,983.18 = 1,623.90 : x
  2. Step 2: Convert to fraction form
    5,321.39/7,983.18 = 1,623.90/x
  3. Step 3: Cross multiply
    5,321.39x = 7,983.18 × 1,623.90
  4. Step 4: Simplify right side
    5,321.39x = 12,963,886.00
  5. Step 5: Solve for x
    x = 12,963,886.00/5,321.39
  6. Step 6: Final answer
    x = 2,436.19

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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.