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Finding the Fourth Proportional to 3,097.86, 4,647.04 and 876.69

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Solution

The fourth proportional to 3,097.86, 4,647.04 and 876.69 is: 1,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.86 : 4,647.04 = 876.69 : x
  2. Step 2: Convert to fraction form
    3,097.86/4,647.04 = 876.69/x
  3. Step 3: Cross multiply
    3,097.86x = 4,647.04 × 876.69
  4. Step 4: Simplify right side
    3,097.86x = 4,074,020.02
  5. Step 5: Solve for x
    x = 4,074,020.02/3,097.86
  6. Step 6: Final answer
    x = 1,315.11

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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.