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Finding the Fourth Proportional to 2,815.73, 3,886.03 and 2,342.79

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Solution

The fourth proportional to 2,815.73, 3,886.03 and 2,342.79 is: 3,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.73 : 3,886.03 = 2,342.79 : x
  2. Step 2: Convert to fraction form
    2,815.73/3,886.03 = 2,342.79/x
  3. Step 3: Cross multiply
    2,815.73x = 3,886.03 × 2,342.79
  4. Step 4: Simplify right side
    2,815.73x = 9,104,148.37
  5. Step 5: Solve for x
    x = 9,104,148.37/2,815.73
  6. Step 6: Final answer
    x = 3,233.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.