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Finding the Fourth Proportional to 5,930.31, 8,892.44 and 1,980.15

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Solution

The fourth proportional to 5,930.31, 8,892.44 and 1,980.15 is: 2,969.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,930.31 : 8,892.44 = 1,980.15 : x
  2. Step 2: Convert to fraction form
    5,930.31/8,892.44 = 1,980.15/x
  3. Step 3: Cross multiply
    5,930.31x = 8,892.44 × 1,980.15
  4. Step 4: Simplify right side
    5,930.31x = 17,608,340.38
  5. Step 5: Solve for x
    x = 17,608,340.38/5,930.31
  6. Step 6: Final answer
    x = 2,969.21

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1.5x scale

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.