Home / 5,002.81-7,508.77-2,664.78

Finding the Fourth Proportional to 5,002.81, 7,508.77 and 2,664.78

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Solution

The fourth proportional to 5,002.81, 7,508.77 and 2,664.78 is: 3,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,002.81 : 7,508.77 = 2,664.78 : x
  2. Step 2: Convert to fraction form
    5,002.81/7,508.77 = 2,664.78/x
  3. Step 3: Cross multiply
    5,002.81x = 7,508.77 × 2,664.78
  4. Step 4: Simplify right side
    5,002.81x = 20,009,220.12
  5. Step 5: Solve for x
    x = 20,009,220.12/5,002.81
  6. Step 6: Final answer
    x = 3,999.60

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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.