Home / 3,717.72-5,125.20-2,536.80

Finding the Fourth Proportional to 3,717.72, 5,125.20 and 2,536.80

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Solution

The fourth proportional to 3,717.72, 5,125.20 and 2,536.80 is: 3,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.72 : 5,125.20 = 2,536.80 : x
  2. Step 2: Convert to fraction form
    3,717.72/5,125.20 = 2,536.80/x
  3. Step 3: Cross multiply
    3,717.72x = 5,125.20 × 2,536.80
  4. Step 4: Simplify right side
    3,717.72x = 13,001,607.36
  5. Step 5: Solve for x
    x = 13,001,607.36/3,717.72
  6. Step 6: Final answer
    x = 3,497.20

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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.