Home / 4,449.12-6,138.72-2,876.91

Finding the Fourth Proportional to 4,449.12, 6,138.72 and 2,876.91

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Solution

The fourth proportional to 4,449.12, 6,138.72 and 2,876.91 is: 3,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,449.12 : 6,138.72 = 2,876.91 : x
  2. Step 2: Convert to fraction form
    4,449.12/6,138.72 = 2,876.91/x
  3. Step 3: Cross multiply
    4,449.12x = 6,138.72 × 2,876.91
  4. Step 4: Simplify right side
    4,449.12x = 17,660,544.96
  5. Step 5: Solve for x
    x = 17,660,544.96/4,449.12
  6. Step 6: Final answer
    x = 3,969.45

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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.