Home / 3,837.13-5,755.56-1,240

Finding the Fourth Proportional to 3,837.13, 5,755.56 and 1,240

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Solution

The fourth proportional to 3,837.13, 5,755.56 and 1,240 is: 1,859.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.13 : 5,755.56 = 1,240 : x
  2. Step 2: Convert to fraction form
    3,837.13/5,755.56 = 1,240/x
  3. Step 3: Cross multiply
    3,837.13x = 5,755.56 × 1,240
  4. Step 4: Simplify right side
    3,837.13x = 7,136,894.40
  5. Step 5: Solve for x
    x = 7,136,894.40/3,837.13
  6. Step 6: Final answer
    x = 1,859.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.