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Finding the Fourth Proportional to 4,999.55, 7,506.16 and 2,809.82

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Solution

The fourth proportional to 4,999.55, 7,506.16 and 2,809.82 is: 4,218.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.55 : 7,506.16 = 2,809.82 : x
  2. Step 2: Convert to fraction form
    4,999.55/7,506.16 = 2,809.82/x
  3. Step 3: Cross multiply
    4,999.55x = 7,506.16 × 2,809.82
  4. Step 4: Simplify right side
    4,999.55x = 21,090,970.23
  5. Step 5: Solve for x
    x = 21,090,970.23/4,999.55
  6. Step 6: Final answer
    x = 4,218.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.