Home / 2,919.16-4,372.26-1,619.80

Finding the Fourth Proportional to 2,919.16, 4,372.26 and 1,619.80

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Solution

The fourth proportional to 2,919.16, 4,372.26 and 1,619.80 is: 2,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.16 : 4,372.26 = 1,619.80 : x
  2. Step 2: Convert to fraction form
    2,919.16/4,372.26 = 1,619.80/x
  3. Step 3: Cross multiply
    2,919.16x = 4,372.26 × 1,619.80
  4. Step 4: Simplify right side
    2,919.16x = 7,082,186.75
  5. Step 5: Solve for x
    x = 7,082,186.75/2,919.16
  6. Step 6: Final answer
    x = 2,426.10

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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.