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Finding the Fourth Proportional to 2,590.96, 3,886.86 and 1,030.96

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Solution

The fourth proportional to 2,590.96, 3,886.86 and 1,030.96 is: 1,546.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.96 : 3,886.86 = 1,030.96 : x
  2. Step 2: Convert to fraction form
    2,590.96/3,886.86 = 1,030.96/x
  3. Step 3: Cross multiply
    2,590.96x = 3,886.86 × 1,030.96
  4. Step 4: Simplify right side
    2,590.96x = 4,007,197.19
  5. Step 5: Solve for x
    x = 4,007,197.19/2,590.96
  6. Step 6: Final answer
    x = 1,546.61

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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.