Home / 6,449.31-9,667.80-4,102.07

Finding the Fourth Proportional to 6,449.31, 9,667.80 and 4,102.07

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Solution

The fourth proportional to 6,449.31, 9,667.80 and 4,102.07 is: 6,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.31 : 9,667.80 = 4,102.07 : x
  2. Step 2: Convert to fraction form
    6,449.31/9,667.80 = 4,102.07/x
  3. Step 3: Cross multiply
    6,449.31x = 9,667.80 × 4,102.07
  4. Step 4: Simplify right side
    6,449.31x = 39,657,944.01
  5. Step 5: Solve for x
    x = 39,657,944.01/6,449.31
  6. Step 6: Final answer
    x = 6,149.18

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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.