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Finding the Fourth Proportional to 2,888.86, 4,332.83 and 808.64

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Solution

The fourth proportional to 2,888.86, 4,332.83 and 808.64 is: 1,212.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.86 : 4,332.83 = 808.64 : x
  2. Step 2: Convert to fraction form
    2,888.86/4,332.83 = 808.64/x
  3. Step 3: Cross multiply
    2,888.86x = 4,332.83 × 808.64
  4. Step 4: Simplify right side
    2,888.86x = 3,503,699.65
  5. Step 5: Solve for x
    x = 3,503,699.65/2,888.86
  6. Step 6: Final answer
    x = 1,212.83

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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.