Home / 3,746.71-5,170.35-2,255.41

Finding the Fourth Proportional to 3,746.71, 5,170.35 and 2,255.41

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Solution

The fourth proportional to 3,746.71, 5,170.35 and 2,255.41 is: 3,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.71 : 5,170.35 = 2,255.41 : x
  2. Step 2: Convert to fraction form
    3,746.71/5,170.35 = 2,255.41/x
  3. Step 3: Cross multiply
    3,746.71x = 5,170.35 × 2,255.41
  4. Step 4: Simplify right side
    3,746.71x = 11,661,259.09
  5. Step 5: Solve for x
    x = 11,661,259.09/3,746.71
  6. Step 6: Final answer
    x = 3,112.40

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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.