Home / 3,999.83-5,521.77-2,743.20

Finding the Fourth Proportional to 3,999.83, 5,521.77 and 2,743.20

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Solution

The fourth proportional to 3,999.83, 5,521.77 and 2,743.20 is: 3,787.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.83 : 5,521.77 = 2,743.20 : x
  2. Step 2: Convert to fraction form
    3,999.83/5,521.77 = 2,743.20/x
  3. Step 3: Cross multiply
    3,999.83x = 5,521.77 × 2,743.20
  4. Step 4: Simplify right side
    3,999.83x = 15,147,319.46
  5. Step 5: Solve for x
    x = 15,147,319.46/3,999.83
  6. Step 6: Final answer
    x = 3,787.00

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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.