Home / 8,812.66-13,218.64-2,890

Finding the Fourth Proportional to 8,812.66, 13,218.64 and 2,890

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Solution

The fourth proportional to 8,812.66, 13,218.64 and 2,890 is: 4,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.66 : 13,218.64 = 2,890 : x
  2. Step 2: Convert to fraction form
    8,812.66/13,218.64 = 2,890/x
  3. Step 3: Cross multiply
    8,812.66x = 13,218.64 × 2,890
  4. Step 4: Simplify right side
    8,812.66x = 38,201,869.60
  5. Step 5: Solve for x
    x = 38,201,869.60/8,812.66
  6. Step 6: Final answer
    x = 4,334.89

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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.