Home / 3,106.49-4,659.91-1,257.56

Finding the Fourth Proportional to 3,106.49, 4,659.91 and 1,257.56

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Solution

The fourth proportional to 3,106.49, 4,659.91 and 1,257.56 is: 1,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.49 : 4,659.91 = 1,257.56 : x
  2. Step 2: Convert to fraction form
    3,106.49/4,659.91 = 1,257.56/x
  3. Step 3: Cross multiply
    3,106.49x = 4,659.91 × 1,257.56
  4. Step 4: Simplify right side
    3,106.49x = 5,860,116.42
  5. Step 5: Solve for x
    x = 5,860,116.42/3,106.49
  6. Step 6: Final answer
    x = 1,886.41

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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.