Home / 3,637.78-5,457.74-1,172.54

Finding the Fourth Proportional to 3,637.78, 5,457.74 and 1,172.54

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Solution

The fourth proportional to 3,637.78, 5,457.74 and 1,172.54 is: 1,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.78 : 5,457.74 = 1,172.54 : x
  2. Step 2: Convert to fraction form
    3,637.78/5,457.74 = 1,172.54/x
  3. Step 3: Cross multiply
    3,637.78x = 5,457.74 × 1,172.54
  4. Step 4: Simplify right side
    3,637.78x = 6,399,418.46
  5. Step 5: Solve for x
    x = 6,399,418.46/3,637.78
  6. Step 6: Final answer
    x = 1,759.15

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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.