Home / 3,748.80-5,172.48-2,175.96

Finding the Fourth Proportional to 3,748.80, 5,172.48 and 2,175.96

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Solution

The fourth proportional to 3,748.80, 5,172.48 and 2,175.96 is: 3,002.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.80 : 5,172.48 = 2,175.96 : x
  2. Step 2: Convert to fraction form
    3,748.80/5,172.48 = 2,175.96/x
  3. Step 3: Cross multiply
    3,748.80x = 5,172.48 × 2,175.96
  4. Step 4: Simplify right side
    3,748.80x = 11,255,109.58
  5. Step 5: Solve for x
    x = 11,255,109.58/3,748.80
  6. Step 6: Final answer
    x = 3,002.32

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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.