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Finding the Fourth Proportional to 6,374.70, 9,561.98 and 1,992.20

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Solution

The fourth proportional to 6,374.70, 9,561.98 and 1,992.20 is: 2,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,374.70 : 9,561.98 = 1,992.20 : x
  2. Step 2: Convert to fraction form
    6,374.70/9,561.98 = 1,992.20/x
  3. Step 3: Cross multiply
    6,374.70x = 9,561.98 × 1,992.20
  4. Step 4: Simplify right side
    6,374.70x = 19,049,333.73
  5. Step 5: Solve for x
    x = 19,049,333.73/6,374.70
  6. Step 6: Final answer
    x = 2,988.27

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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.