Home / 5,530.12-8,291.72-1,831.38

Finding the Fourth Proportional to 5,530.12, 8,291.72 and 1,831.38

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Solution

The fourth proportional to 5,530.12, 8,291.72 and 1,831.38 is: 2,745.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.12 : 8,291.72 = 1,831.38 : x
  2. Step 2: Convert to fraction form
    5,530.12/8,291.72 = 1,831.38/x
  3. Step 3: Cross multiply
    5,530.12x = 8,291.72 × 1,831.38
  4. Step 4: Simplify right side
    5,530.12x = 15,185,290.17
  5. Step 5: Solve for x
    x = 15,185,290.17/5,530.12
  6. Step 6: Final answer
    x = 2,745.92

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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.