Home / 3,241.80-4,475.28-1,915.92

Finding the Fourth Proportional to 3,241.80, 4,475.28 and 1,915.92

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Solution

The fourth proportional to 3,241.80, 4,475.28 and 1,915.92 is: 2,644.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.80 : 4,475.28 = 1,915.92 : x
  2. Step 2: Convert to fraction form
    3,241.80/4,475.28 = 1,915.92/x
  3. Step 3: Cross multiply
    3,241.80x = 4,475.28 × 1,915.92
  4. Step 4: Simplify right side
    3,241.80x = 8,574,278.46
  5. Step 5: Solve for x
    x = 8,574,278.46/3,241.80
  6. Step 6: Final answer
    x = 2,644.91

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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.