Home / 2,615.78-3,913.94-1,576.56

Finding the Fourth Proportional to 2,615.78, 3,913.94 and 1,576.56

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Solution

The fourth proportional to 2,615.78, 3,913.94 and 1,576.56 is: 2,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.78 : 3,913.94 = 1,576.56 : x
  2. Step 2: Convert to fraction form
    2,615.78/3,913.94 = 1,576.56/x
  3. Step 3: Cross multiply
    2,615.78x = 3,913.94 × 1,576.56
  4. Step 4: Simplify right side
    2,615.78x = 6,170,561.25
  5. Step 5: Solve for x
    x = 6,170,561.25/2,615.78
  6. Step 6: Final answer
    x = 2,358.98

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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.