Home / 3,078.95-4,249.37-1,752.78

Finding the Fourth Proportional to 3,078.95, 4,249.37 and 1,752.78

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Solution

The fourth proportional to 3,078.95, 4,249.37 and 1,752.78 is: 2,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.95 : 4,249.37 = 1,752.78 : x
  2. Step 2: Convert to fraction form
    3,078.95/4,249.37 = 1,752.78/x
  3. Step 3: Cross multiply
    3,078.95x = 4,249.37 × 1,752.78
  4. Step 4: Simplify right side
    3,078.95x = 7,448,201.98
  5. Step 5: Solve for x
    x = 7,448,201.98/3,078.95
  6. Step 6: Final answer
    x = 2,419.08

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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.