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Finding the Fourth Proportional to 5,776.81, 8,662.92 and 2,077.90

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Solution

The fourth proportional to 5,776.81, 8,662.92 and 2,077.90 is: 3,116.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.81 : 8,662.92 = 2,077.90 : x
  2. Step 2: Convert to fraction form
    5,776.81/8,662.92 = 2,077.90/x
  3. Step 3: Cross multiply
    5,776.81x = 8,662.92 × 2,077.90
  4. Step 4: Simplify right side
    5,776.81x = 18,000,681.47
  5. Step 5: Solve for x
    x = 18,000,681.47/5,776.81
  6. Step 6: Final answer
    x = 3,116.02

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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.