Home / 2,817.47-4,226.66-869.22

Finding the Fourth Proportional to 2,817.47, 4,226.66 and 869.22

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Solution

The fourth proportional to 2,817.47, 4,226.66 and 869.22 is: 1,303.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.47 : 4,226.66 = 869.22 : x
  2. Step 2: Convert to fraction form
    2,817.47/4,226.66 = 869.22/x
  3. Step 3: Cross multiply
    2,817.47x = 4,226.66 × 869.22
  4. Step 4: Simplify right side
    2,817.47x = 3,673,897.41
  5. Step 5: Solve for x
    x = 3,673,897.41/2,817.47
  6. Step 6: Final answer
    x = 1,303.97

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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.