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Finding the Fourth Proportional to 3,952.19, 5,929.81 and 1,487.63

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Solution

The fourth proportional to 3,952.19, 5,929.81 and 1,487.63 is: 2,232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.19 : 5,929.81 = 1,487.63 : x
  2. Step 2: Convert to fraction form
    3,952.19/5,929.81 = 1,487.63/x
  3. Step 3: Cross multiply
    3,952.19x = 5,929.81 × 1,487.63
  4. Step 4: Simplify right side
    3,952.19x = 8,821,374.36
  5. Step 5: Solve for x
    x = 8,821,374.36/3,952.19
  6. Step 6: Final answer
    x = 2,232.02

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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.