Home / 3,954.20-5,929.61-1,487.30

Finding the Fourth Proportional to 3,954.20, 5,929.61 and 1,487.30

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Solution

The fourth proportional to 3,954.20, 5,929.61 and 1,487.30 is: 2,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.20 : 5,929.61 = 1,487.30 : x
  2. Step 2: Convert to fraction form
    3,954.20/5,929.61 = 1,487.30/x
  3. Step 3: Cross multiply
    3,954.20x = 5,929.61 × 1,487.30
  4. Step 4: Simplify right side
    3,954.20x = 8,819,071.87
  5. Step 5: Solve for x
    x = 8,819,071.87/3,954.20
  6. Step 6: Final answer
    x = 2,230.31

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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.