Home / 3,491.04-4,817.79-1,919.28

Finding the Fourth Proportional to 3,491.04, 4,817.79 and 1,919.28

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Solution

The fourth proportional to 3,491.04, 4,817.79 and 1,919.28 is: 2,648.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.04 : 4,817.79 = 1,919.28 : x
  2. Step 2: Convert to fraction form
    3,491.04/4,817.79 = 1,919.28/x
  3. Step 3: Cross multiply
    3,491.04x = 4,817.79 × 1,919.28
  4. Step 4: Simplify right side
    3,491.04x = 9,246,687.99
  5. Step 5: Solve for x
    x = 9,246,687.99/3,491.04
  6. Step 6: Final answer
    x = 2,648.69

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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.