Home / 3,217.89-4,440.31-1,801.66

Finding the Fourth Proportional to 3,217.89, 4,440.31 and 1,801.66

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Solution

The fourth proportional to 3,217.89, 4,440.31 and 1,801.66 is: 2,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.89 : 4,440.31 = 1,801.66 : x
  2. Step 2: Convert to fraction form
    3,217.89/4,440.31 = 1,801.66/x
  3. Step 3: Cross multiply
    3,217.89x = 4,440.31 × 1,801.66
  4. Step 4: Simplify right side
    3,217.89x = 7,999,906.71
  5. Step 5: Solve for x
    x = 7,999,906.71/3,217.89
  6. Step 6: Final answer
    x = 2,486.08

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1.5x scale

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.