Home / 3,915.84-5,867.46-2,679.06

Finding the Fourth Proportional to 3,915.84, 5,867.46 and 2,679.06

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Solution

The fourth proportional to 3,915.84, 5,867.46 and 2,679.06 is: 4,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.84 : 5,867.46 = 2,679.06 : x
  2. Step 2: Convert to fraction form
    3,915.84/5,867.46 = 2,679.06/x
  3. Step 3: Cross multiply
    3,915.84x = 5,867.46 × 2,679.06
  4. Step 4: Simplify right side
    3,915.84x = 15,719,277.39
  5. Step 5: Solve for x
    x = 15,719,277.39/3,915.84
  6. Step 6: Final answer
    x = 4,014.28

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1.5x scale

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.