Home / 3,335.78-4,603.64-1,919.91

Finding the Fourth Proportional to 3,335.78, 4,603.64 and 1,919.91

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Solution

The fourth proportional to 3,335.78, 4,603.64 and 1,919.91 is: 2,649.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.78 : 4,603.64 = 1,919.91 : x
  2. Step 2: Convert to fraction form
    3,335.78/4,603.64 = 1,919.91/x
  3. Step 3: Cross multiply
    3,335.78x = 4,603.64 × 1,919.91
  4. Step 4: Simplify right side
    3,335.78x = 8,838,564.87
  5. Step 5: Solve for x
    x = 8,838,564.87/3,335.78
  6. Step 6: Final answer
    x = 2,649.63

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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.