Home / 4,919.03-7,379.29-1,631.38

Finding the Fourth Proportional to 4,919.03, 7,379.29 and 1,631.38

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Solution

The fourth proportional to 4,919.03, 7,379.29 and 1,631.38 is: 2,447.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.03 : 7,379.29 = 1,631.38 : x
  2. Step 2: Convert to fraction form
    4,919.03/7,379.29 = 1,631.38/x
  3. Step 3: Cross multiply
    4,919.03x = 7,379.29 × 1,631.38
  4. Step 4: Simplify right side
    4,919.03x = 12,038,426.12
  5. Step 5: Solve for x
    x = 12,038,426.12/4,919.03
  6. Step 6: Final answer
    x = 2,447.32

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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.