Home / 2,555.11-3,831.47-1,515.26

Finding the Fourth Proportional to 2,555.11, 3,831.47 and 1,515.26

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Solution

The fourth proportional to 2,555.11, 3,831.47 and 1,515.26 is: 2,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.11 : 3,831.47 = 1,515.26 : x
  2. Step 2: Convert to fraction form
    2,555.11/3,831.47 = 1,515.26/x
  3. Step 3: Cross multiply
    2,555.11x = 3,831.47 × 1,515.26
  4. Step 4: Simplify right side
    2,555.11x = 5,805,673.23
  5. Step 5: Solve for x
    x = 5,805,673.23/2,555.11
  6. Step 6: Final answer
    x = 2,272.18

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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.