Home / 5,382.90-8,072.64-2,095.20

Finding the Fourth Proportional to 5,382.90, 8,072.64 and 2,095.20

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Solution

The fourth proportional to 5,382.90, 8,072.64 and 2,095.20 is: 3,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.90 : 8,072.64 = 2,095.20 : x
  2. Step 2: Convert to fraction form
    5,382.90/8,072.64 = 2,095.20/x
  3. Step 3: Cross multiply
    5,382.90x = 8,072.64 × 2,095.20
  4. Step 4: Simplify right side
    5,382.90x = 16,913,795.33
  5. Step 5: Solve for x
    x = 16,913,795.33/5,382.90
  6. Step 6: Final answer
    x = 3,142.13

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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.