Home / 2,615.30-3,918-1,297.52

Finding the Fourth Proportional to 2,615.30, 3,918 and 1,297.52

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Solution

The fourth proportional to 2,615.30, 3,918 and 1,297.52 is: 1,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.30 : 3,918 = 1,297.52 : x
  2. Step 2: Convert to fraction form
    2,615.30/3,918 = 1,297.52/x
  3. Step 3: Cross multiply
    2,615.30x = 3,918 × 1,297.52
  4. Step 4: Simplify right side
    2,615.30x = 5,083,683.36
  5. Step 5: Solve for x
    x = 5,083,683.36/2,615.30
  6. Step 6: Final answer
    x = 1,943.82

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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.