Home / 3,210.06-4,815.15-1,479.90

Finding the Fourth Proportional to 3,210.06, 4,815.15 and 1,479.90

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Solution

The fourth proportional to 3,210.06, 4,815.15 and 1,479.90 is: 2,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.06 : 4,815.15 = 1,479.90 : x
  2. Step 2: Convert to fraction form
    3,210.06/4,815.15 = 1,479.90/x
  3. Step 3: Cross multiply
    3,210.06x = 4,815.15 × 1,479.90
  4. Step 4: Simplify right side
    3,210.06x = 7,125,940.49
  5. Step 5: Solve for x
    x = 7,125,940.49/3,210.06
  6. Step 6: Final answer
    x = 2,219.88

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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.