Home / 3,491.62-4,818.36-1,919.74

Finding the Fourth Proportional to 3,491.62, 4,818.36 and 1,919.74

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Solution

The fourth proportional to 3,491.62, 4,818.36 and 1,919.74 is: 2,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.62 : 4,818.36 = 1,919.74 : x
  2. Step 2: Convert to fraction form
    3,491.62/4,818.36 = 1,919.74/x
  3. Step 3: Cross multiply
    3,491.62x = 4,818.36 × 1,919.74
  4. Step 4: Simplify right side
    3,491.62x = 9,249,998.43
  5. Step 5: Solve for x
    x = 9,249,998.43/3,491.62
  6. Step 6: Final answer
    x = 2,649.20

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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.