Home / 6,438.85-9,656.65-2,054.05

Finding the Fourth Proportional to 6,438.85, 9,656.65 and 2,054.05

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Solution

The fourth proportional to 6,438.85, 9,656.65 and 2,054.05 is: 3,080.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.85 : 9,656.65 = 2,054.05 : x
  2. Step 2: Convert to fraction form
    6,438.85/9,656.65 = 2,054.05/x
  3. Step 3: Cross multiply
    6,438.85x = 9,656.65 × 2,054.05
  4. Step 4: Simplify right side
    6,438.85x = 19,835,241.93
  5. Step 5: Solve for x
    x = 19,835,241.93/6,438.85
  6. Step 6: Final answer
    x = 3,080.56

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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.