Home / 3,087.32-4,256.70-2,257.88

Finding the Fourth Proportional to 3,087.32, 4,256.70 and 2,257.88

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Solution

The fourth proportional to 3,087.32, 4,256.70 and 2,257.88 is: 3,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.32 : 4,256.70 = 2,257.88 : x
  2. Step 2: Convert to fraction form
    3,087.32/4,256.70 = 2,257.88/x
  3. Step 3: Cross multiply
    3,087.32x = 4,256.70 × 2,257.88
  4. Step 4: Simplify right side
    3,087.32x = 9,611,117.80
  5. Step 5: Solve for x
    x = 9,611,117.80/3,087.32
  6. Step 6: Final answer
    x = 3,113.09

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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.