Home / 4,869.72-6,721.08-2,881.37

Finding the Fourth Proportional to 4,869.72, 6,721.08 and 2,881.37

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Solution

The fourth proportional to 4,869.72, 6,721.08 and 2,881.37 is: 3,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.72 : 6,721.08 = 2,881.37 : x
  2. Step 2: Convert to fraction form
    4,869.72/6,721.08 = 2,881.37/x
  3. Step 3: Cross multiply
    4,869.72x = 6,721.08 × 2,881.37
  4. Step 4: Simplify right side
    4,869.72x = 19,365,924.28
  5. Step 5: Solve for x
    x = 19,365,924.28/4,869.72
  6. Step 6: Final answer
    x = 3,976.80

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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.