Home / 3,241.95-4,473.71-1,915.78

Finding the Fourth Proportional to 3,241.95, 4,473.71 and 1,915.78

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Solution

The fourth proportional to 3,241.95, 4,473.71 and 1,915.78 is: 2,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.95 : 4,473.71 = 1,915.78 : x
  2. Step 2: Convert to fraction form
    3,241.95/4,473.71 = 1,915.78/x
  3. Step 3: Cross multiply
    3,241.95x = 4,473.71 × 1,915.78
  4. Step 4: Simplify right side
    3,241.95x = 8,570,630.56
  5. Step 5: Solve for x
    x = 8,570,630.56/3,241.95
  6. Step 6: Final answer
    x = 2,643.67

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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.