Home / 4,259.30-6,376.80-3,279.20

Finding the Fourth Proportional to 4,259.30, 6,376.80 and 3,279.20

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Solution

The fourth proportional to 4,259.30, 6,376.80 and 3,279.20 is: 4,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.30 : 6,376.80 = 3,279.20 : x
  2. Step 2: Convert to fraction form
    4,259.30/6,376.80 = 3,279.20/x
  3. Step 3: Cross multiply
    4,259.30x = 6,376.80 × 3,279.20
  4. Step 4: Simplify right side
    4,259.30x = 20,910,802.56
  5. Step 5: Solve for x
    x = 20,910,802.56/4,259.30
  6. Step 6: Final answer
    x = 4,909.45

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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.