Home / 4,919.64-7,377.85-1,631.85

Finding the Fourth Proportional to 4,919.64, 7,377.85 and 1,631.85

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Solution

The fourth proportional to 4,919.64, 7,377.85 and 1,631.85 is: 2,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.64 : 7,377.85 = 1,631.85 : x
  2. Step 2: Convert to fraction form
    4,919.64/7,377.85 = 1,631.85/x
  3. Step 3: Cross multiply
    4,919.64x = 7,377.85 × 1,631.85
  4. Step 4: Simplify right side
    4,919.64x = 12,039,507.63
  5. Step 5: Solve for x
    x = 12,039,507.63/4,919.64
  6. Step 6: Final answer
    x = 2,447.24

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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.