Home / 3,746.76-5,170.50-2,175

Finding the Fourth Proportional to 3,746.76, 5,170.50 and 2,175

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Solution

The fourth proportional to 3,746.76, 5,170.50 and 2,175 is: 3,001.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.76 : 5,170.50 = 2,175 : x
  2. Step 2: Convert to fraction form
    3,746.76/5,170.50 = 2,175/x
  3. Step 3: Cross multiply
    3,746.76x = 5,170.50 × 2,175
  4. Step 4: Simplify right side
    3,746.76x = 11,245,837.50
  5. Step 5: Solve for x
    x = 11,245,837.50/3,746.76
  6. Step 6: Final answer
    x = 3,001.48

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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.