Home / 4,286.09-5,915.35-2,397.78

Finding the Fourth Proportional to 4,286.09, 5,915.35 and 2,397.78

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Solution

The fourth proportional to 4,286.09, 5,915.35 and 2,397.78 is: 3,309.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.09 : 5,915.35 = 2,397.78 : x
  2. Step 2: Convert to fraction form
    4,286.09/5,915.35 = 2,397.78/x
  3. Step 3: Cross multiply
    4,286.09x = 5,915.35 × 2,397.78
  4. Step 4: Simplify right side
    4,286.09x = 14,183,680.80
  5. Step 5: Solve for x
    x = 14,183,680.80/4,286.09
  6. Step 6: Final answer
    x = 3,309.24

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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.