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Finding the Fourth Proportional to 4,927.88, 7,379.94 and 2,842.76

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Solution

The fourth proportional to 4,927.88, 7,379.94 and 2,842.76 is: 4,257.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.88 : 7,379.94 = 2,842.76 : x
  2. Step 2: Convert to fraction form
    4,927.88/7,379.94 = 2,842.76/x
  3. Step 3: Cross multiply
    4,927.88x = 7,379.94 × 2,842.76
  4. Step 4: Simplify right side
    4,927.88x = 20,979,398.23
  5. Step 5: Solve for x
    x = 20,979,398.23/4,927.88
  6. Step 6: Final answer
    x = 4,257.29

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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.