Home / 3,837.78-5,756.64-1,101.78

Finding the Fourth Proportional to 3,837.78, 5,756.64 and 1,101.78

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Solution

The fourth proportional to 3,837.78, 5,756.64 and 1,101.78 is: 1,652.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.78 : 5,756.64 = 1,101.78 : x
  2. Step 2: Convert to fraction form
    3,837.78/5,756.64 = 1,101.78/x
  3. Step 3: Cross multiply
    3,837.78x = 5,756.64 × 1,101.78
  4. Step 4: Simplify right side
    3,837.78x = 6,342,550.82
  5. Step 5: Solve for x
    x = 6,342,550.82/3,837.78
  6. Step 6: Final answer
    x = 1,652.66

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1.5x scale

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.