Home / 3,491.83-4,818.60-1,919.91

Finding the Fourth Proportional to 3,491.83, 4,818.60 and 1,919.91

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Solution

The fourth proportional to 3,491.83, 4,818.60 and 1,919.91 is: 2,649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.83 : 4,818.60 = 1,919.91 : x
  2. Step 2: Convert to fraction form
    3,491.83/4,818.60 = 1,919.91/x
  3. Step 3: Cross multiply
    3,491.83x = 4,818.60 × 1,919.91
  4. Step 4: Simplify right side
    3,491.83x = 9,251,278.33
  5. Step 5: Solve for x
    x = 9,251,278.33/3,491.83
  6. Step 6: Final answer
    x = 2,649.41

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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.