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Finding the Fourth Proportional to 3,070.24, 4,604.49 and 878.38

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Solution

The fourth proportional to 3,070.24, 4,604.49 and 878.38 is: 1,317.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.24 : 4,604.49 = 878.38 : x
  2. Step 2: Convert to fraction form
    3,070.24/4,604.49 = 878.38/x
  3. Step 3: Cross multiply
    3,070.24x = 4,604.49 × 878.38
  4. Step 4: Simplify right side
    3,070.24x = 4,044,491.93
  5. Step 5: Solve for x
    x = 4,044,491.93/3,070.24
  6. Step 6: Final answer
    x = 1,317.32

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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.