Home / 3,241.58-4,473.19-1,915.40

Finding the Fourth Proportional to 3,241.58, 4,473.19 and 1,915.40

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Solution

The fourth proportional to 3,241.58, 4,473.19 and 1,915.40 is: 2,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.58 : 4,473.19 = 1,915.40 : x
  2. Step 2: Convert to fraction form
    3,241.58/4,473.19 = 1,915.40/x
  3. Step 3: Cross multiply
    3,241.58x = 4,473.19 × 1,915.40
  4. Step 4: Simplify right side
    3,241.58x = 8,567,961.70
  5. Step 5: Solve for x
    x = 8,567,961.70/3,241.58
  6. Step 6: Final answer
    x = 2,643.15

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1.5x scale

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.