Home / 4,449.74-6,138.60-2,878.34

Finding the Fourth Proportional to 4,449.74, 6,138.60 and 2,878.34

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Solution

The fourth proportional to 4,449.74, 6,138.60 and 2,878.34 is: 3,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,449.74 : 6,138.60 = 2,878.34 : x
  2. Step 2: Convert to fraction form
    4,449.74/6,138.60 = 2,878.34/x
  3. Step 3: Cross multiply
    4,449.74x = 6,138.60 × 2,878.34
  4. Step 4: Simplify right side
    4,449.74x = 17,668,977.92
  5. Step 5: Solve for x
    x = 17,668,977.92/4,449.74
  6. Step 6: Final answer
    x = 3,970.79

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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.