Home / 3,914.30-5,871.46-1,319.06

Finding the Fourth Proportional to 3,914.30, 5,871.46 and 1,319.06

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Solution

The fourth proportional to 3,914.30, 5,871.46 and 1,319.06 is: 1,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.30 : 5,871.46 = 1,319.06 : x
  2. Step 2: Convert to fraction form
    3,914.30/5,871.46 = 1,319.06/x
  3. Step 3: Cross multiply
    3,914.30x = 5,871.46 × 1,319.06
  4. Step 4: Simplify right side
    3,914.30x = 7,744,819.41
  5. Step 5: Solve for x
    x = 7,744,819.41/3,914.30
  6. Step 6: Final answer
    x = 1,978.60

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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.