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Finding the Fourth Proportional to 4,996.80, 6,894.81 and 2,872.40

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Solution

The fourth proportional to 4,996.80, 6,894.81 and 2,872.40 is: 3,963.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,996.80 : 6,894.81 = 2,872.40 : x
  2. Step 2: Convert to fraction form
    4,996.80/6,894.81 = 2,872.40/x
  3. Step 3: Cross multiply
    4,996.80x = 6,894.81 × 2,872.40
  4. Step 4: Simplify right side
    4,996.80x = 19,804,652.24
  5. Step 5: Solve for x
    x = 19,804,652.24/4,996.80
  6. Step 6: Final answer
    x = 3,963.47

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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.