Home / 3,490.85-4,817.39-1,919.04

Finding the Fourth Proportional to 3,490.85, 4,817.39 and 1,919.04

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Solution

The fourth proportional to 3,490.85, 4,817.39 and 1,919.04 is: 2,648.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.85 : 4,817.39 = 1,919.04 : x
  2. Step 2: Convert to fraction form
    3,490.85/4,817.39 = 1,919.04/x
  3. Step 3: Cross multiply
    3,490.85x = 4,817.39 × 1,919.04
  4. Step 4: Simplify right side
    3,490.85x = 9,244,779.77
  5. Step 5: Solve for x
    x = 9,244,779.77/3,490.85
  6. Step 6: Final answer
    x = 2,648.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.