Home / 4,263.88-6,399.63-2,185.30

Finding the Fourth Proportional to 4,263.88, 6,399.63 and 2,185.30

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Solution

The fourth proportional to 4,263.88, 6,399.63 and 2,185.30 is: 3,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,263.88 : 6,399.63 = 2,185.30 : x
  2. Step 2: Convert to fraction form
    4,263.88/6,399.63 = 2,185.30/x
  3. Step 3: Cross multiply
    4,263.88x = 6,399.63 × 2,185.30
  4. Step 4: Simplify right side
    4,263.88x = 13,985,111.44
  5. Step 5: Solve for x
    x = 13,985,111.44/4,263.88
  6. Step 6: Final answer
    x = 3,279.90

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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.