Home / 4,288.28-5,915.58-2,891.48

Finding the Fourth Proportional to 4,288.28, 5,915.58 and 2,891.48

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Solution

The fourth proportional to 4,288.28, 5,915.58 and 2,891.48 is: 3,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.28 : 5,915.58 = 2,891.48 : x
  2. Step 2: Convert to fraction form
    4,288.28/5,915.58 = 2,891.48/x
  3. Step 3: Cross multiply
    4,288.28x = 5,915.58 × 2,891.48
  4. Step 4: Simplify right side
    4,288.28x = 17,104,781.26
  5. Step 5: Solve for x
    x = 17,104,781.26/4,288.28
  6. Step 6: Final answer
    x = 3,988.73

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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.