Home / 3,241.86-4,474.08-1,915.50

Finding the Fourth Proportional to 3,241.86, 4,474.08 and 1,915.50

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Solution

The fourth proportional to 3,241.86, 4,474.08 and 1,915.50 is: 2,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.86 : 4,474.08 = 1,915.50 : x
  2. Step 2: Convert to fraction form
    3,241.86/4,474.08 = 1,915.50/x
  3. Step 3: Cross multiply
    3,241.86x = 4,474.08 × 1,915.50
  4. Step 4: Simplify right side
    3,241.86x = 8,570,100.24
  5. Step 5: Solve for x
    x = 8,570,100.24/3,241.86
  6. Step 6: Final answer
    x = 2,643.58

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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.