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Finding the Fourth Proportional to 6,374.16, 9,558 and 1,991.52

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Solution

The fourth proportional to 6,374.16, 9,558 and 1,991.52 is: 2,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,374.16 : 9,558 = 1,991.52 : x
  2. Step 2: Convert to fraction form
    6,374.16/9,558 = 1,991.52/x
  3. Step 3: Cross multiply
    6,374.16x = 9,558 × 1,991.52
  4. Step 4: Simplify right side
    6,374.16x = 19,034,948.16
  5. Step 5: Solve for x
    x = 19,034,948.16/6,374.16
  6. Step 6: Final answer
    x = 2,986.27

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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.