Home / 3,508.78-5,259.51-1,427.95

Finding the Fourth Proportional to 3,508.78, 5,259.51 and 1,427.95

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Solution

The fourth proportional to 3,508.78, 5,259.51 and 1,427.95 is: 2,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.78 : 5,259.51 = 1,427.95 : x
  2. Step 2: Convert to fraction form
    3,508.78/5,259.51 = 1,427.95/x
  3. Step 3: Cross multiply
    3,508.78x = 5,259.51 × 1,427.95
  4. Step 4: Simplify right side
    3,508.78x = 7,510,317.30
  5. Step 5: Solve for x
    x = 7,510,317.30/3,508.78
  6. Step 6: Final answer
    x = 2,140.44

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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.