Home / 4,881.06-6,735.44-2,891.28

Finding the Fourth Proportional to 4,881.06, 6,735.44 and 2,891.28

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Solution

The fourth proportional to 4,881.06, 6,735.44 and 2,891.28 is: 3,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.06 : 6,735.44 = 2,891.28 : x
  2. Step 2: Convert to fraction form
    4,881.06/6,735.44 = 2,891.28/x
  3. Step 3: Cross multiply
    4,881.06x = 6,735.44 × 2,891.28
  4. Step 4: Simplify right side
    4,881.06x = 19,474,042.96
  5. Step 5: Solve for x
    x = 19,474,042.96/4,881.06
  6. Step 6: Final answer
    x = 3,989.72

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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.