Home / 4,212.33-6,319.30-1,290.66

Finding the Fourth Proportional to 4,212.33, 6,319.30 and 1,290.66

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Solution

The fourth proportional to 4,212.33, 6,319.30 and 1,290.66 is: 1,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.33 : 6,319.30 = 1,290.66 : x
  2. Step 2: Convert to fraction form
    4,212.33/6,319.30 = 1,290.66/x
  3. Step 3: Cross multiply
    4,212.33x = 6,319.30 × 1,290.66
  4. Step 4: Simplify right side
    4,212.33x = 8,156,032.91
  5. Step 5: Solve for x
    x = 8,156,032.91/4,212.33
  6. Step 6: Final answer
    x = 1,936.23

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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.