Home / 5,776.21-8,665.08-2,078.16

Finding the Fourth Proportional to 5,776.21, 8,665.08 and 2,078.16

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Solution

The fourth proportional to 5,776.21, 8,665.08 and 2,078.16 is: 3,117.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.21 : 8,665.08 = 2,078.16 : x
  2. Step 2: Convert to fraction form
    5,776.21/8,665.08 = 2,078.16/x
  3. Step 3: Cross multiply
    5,776.21x = 8,665.08 × 2,078.16
  4. Step 4: Simplify right side
    5,776.21x = 18,007,382.37
  5. Step 5: Solve for x
    x = 18,007,382.37/5,776.21
  6. Step 6: Final answer
    x = 3,117.51

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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.