Home / 3,615.78-5,424.24-1,424.52

Finding the Fourth Proportional to 3,615.78, 5,424.24 and 1,424.52

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Solution

The fourth proportional to 3,615.78, 5,424.24 and 1,424.52 is: 2,137.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.78 : 5,424.24 = 1,424.52 : x
  2. Step 2: Convert to fraction form
    3,615.78/5,424.24 = 1,424.52/x
  3. Step 3: Cross multiply
    3,615.78x = 5,424.24 × 1,424.52
  4. Step 4: Simplify right side
    3,615.78x = 7,726,938.36
  5. Step 5: Solve for x
    x = 7,726,938.36/3,615.78
  6. Step 6: Final answer
    x = 2,137.00

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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.