Home / 3,746.91-5,172.80-2,255.19

Finding the Fourth Proportional to 3,746.91, 5,172.80 and 2,255.19

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Solution

The fourth proportional to 3,746.91, 5,172.80 and 2,255.19 is: 3,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.91 : 5,172.80 = 2,255.19 : x
  2. Step 2: Convert to fraction form
    3,746.91/5,172.80 = 2,255.19/x
  3. Step 3: Cross multiply
    3,746.91x = 5,172.80 × 2,255.19
  4. Step 4: Simplify right side
    3,746.91x = 11,665,633.90
  5. Step 5: Solve for x
    x = 11,665,633.90/3,746.91
  6. Step 6: Final answer
    x = 3,113.41

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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.