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Finding the Fourth Proportional to 5,010, 6,913.80 and 2,802

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Solution

The fourth proportional to 5,010, 6,913.80 and 2,802 is: 3,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010 : 6,913.80 = 2,802 : x
  2. Step 2: Convert to fraction form
    5,010/6,913.80 = 2,802/x
  3. Step 3: Cross multiply
    5,010x = 6,913.80 × 2,802
  4. Step 4: Simplify right side
    5,010x = 19,372,467.60
  5. Step 5: Solve for x
    x = 19,372,467.60/5,010
  6. Step 6: Final answer
    x = 3,866.76

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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.