Home / 3,968.65-5,947.98-1,886.95

Finding the Fourth Proportional to 3,968.65, 5,947.98 and 1,886.95

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Solution

The fourth proportional to 3,968.65, 5,947.98 and 1,886.95 is: 2,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.65 : 5,947.98 = 1,886.95 : x
  2. Step 2: Convert to fraction form
    3,968.65/5,947.98 = 1,886.95/x
  3. Step 3: Cross multiply
    3,968.65x = 5,947.98 × 1,886.95
  4. Step 4: Simplify right side
    3,968.65x = 11,223,540.86
  5. Step 5: Solve for x
    x = 11,223,540.86/3,968.65
  6. Step 6: Final answer
    x = 2,828.05

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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.