Home / 3,999.56-5,520.59-2,321.72

Finding the Fourth Proportional to 3,999.56, 5,520.59 and 2,321.72

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Solution

The fourth proportional to 3,999.56, 5,520.59 and 2,321.72 is: 3,204.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.56 : 5,520.59 = 2,321.72 : x
  2. Step 2: Convert to fraction form
    3,999.56/5,520.59 = 2,321.72/x
  3. Step 3: Cross multiply
    3,999.56x = 5,520.59 × 2,321.72
  4. Step 4: Simplify right side
    3,999.56x = 12,817,225.00
  5. Step 5: Solve for x
    x = 12,817,225.00/3,999.56
  6. Step 6: Final answer
    x = 3,204.66

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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.