Home / 3,212.70-4,818.31-1,479.66

Finding the Fourth Proportional to 3,212.70, 4,818.31 and 1,479.66

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Solution

The fourth proportional to 3,212.70, 4,818.31 and 1,479.66 is: 2,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.70 : 4,818.31 = 1,479.66 : x
  2. Step 2: Convert to fraction form
    3,212.70/4,818.31 = 1,479.66/x
  3. Step 3: Cross multiply
    3,212.70x = 4,818.31 × 1,479.66
  4. Step 4: Simplify right side
    3,212.70x = 7,129,460.57
  5. Step 5: Solve for x
    x = 7,129,460.57/3,212.70
  6. Step 6: Final answer
    x = 2,219.15

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1.5x scale

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.