Home / 3,378.49-5,067.59-1,038.40

Finding the Fourth Proportional to 3,378.49, 5,067.59 and 1,038.40

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Solution

The fourth proportional to 3,378.49, 5,067.59 and 1,038.40 is: 1,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.49 : 5,067.59 = 1,038.40 : x
  2. Step 2: Convert to fraction form
    3,378.49/5,067.59 = 1,038.40/x
  3. Step 3: Cross multiply
    3,378.49x = 5,067.59 × 1,038.40
  4. Step 4: Simplify right side
    3,378.49x = 5,262,180.26
  5. Step 5: Solve for x
    x = 5,262,180.26/3,378.49
  6. Step 6: Final answer
    x = 1,557.55

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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.