Home / 3,378.72-5,067.12-1,298.58

Finding the Fourth Proportional to 3,378.72, 5,067.12 and 1,298.58

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Solution

The fourth proportional to 3,378.72, 5,067.12 and 1,298.58 is: 1,947.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.72 : 5,067.12 = 1,298.58 : x
  2. Step 2: Convert to fraction form
    3,378.72/5,067.12 = 1,298.58/x
  3. Step 3: Cross multiply
    3,378.72x = 5,067.12 × 1,298.58
  4. Step 4: Simplify right side
    3,378.72x = 6,580,060.69
  5. Step 5: Solve for x
    x = 6,580,060.69/3,378.72
  6. Step 6: Final answer
    x = 1,947.50

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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.