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Finding the Fourth Proportional to 3,326.16, 4,975.80 and 2,779.44

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Solution

The fourth proportional to 3,326.16, 4,975.80 and 2,779.44 is: 4,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.16 : 4,975.80 = 2,779.44 : x
  2. Step 2: Convert to fraction form
    3,326.16/4,975.80 = 2,779.44/x
  3. Step 3: Cross multiply
    3,326.16x = 4,975.80 × 2,779.44
  4. Step 4: Simplify right side
    3,326.16x = 13,829,937.55
  5. Step 5: Solve for x
    x = 13,829,937.55/3,326.16
  6. Step 6: Final answer
    x = 4,157.93

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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.