Home / 3,219.65-4,443.29-1,960.50

Finding the Fourth Proportional to 3,219.65, 4,443.29 and 1,960.50

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Solution

The fourth proportional to 3,219.65, 4,443.29 and 1,960.50 is: 2,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.65 : 4,443.29 = 1,960.50 : x
  2. Step 2: Convert to fraction form
    3,219.65/4,443.29 = 1,960.50/x
  3. Step 3: Cross multiply
    3,219.65x = 4,443.29 × 1,960.50
  4. Step 4: Simplify right side
    3,219.65x = 8,711,060.24
  5. Step 5: Solve for x
    x = 8,711,060.24/3,219.65
  6. Step 6: Final answer
    x = 2,705.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.