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Finding the Fourth Proportional to 3,983.36, 5,970.36 and 1,641.92

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Solution

The fourth proportional to 3,983.36, 5,970.36 and 1,641.92 is: 2,460.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.36 : 5,970.36 = 1,641.92 : x
  2. Step 2: Convert to fraction form
    3,983.36/5,970.36 = 1,641.92/x
  3. Step 3: Cross multiply
    3,983.36x = 5,970.36 × 1,641.92
  4. Step 4: Simplify right side
    3,983.36x = 9,802,853.49
  5. Step 5: Solve for x
    x = 9,802,853.49/3,983.36
  6. Step 6: Final answer
    x = 2,460.95

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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.