Home / 4,805.51-7,205.79-2,831.72

Finding the Fourth Proportional to 4,805.51, 7,205.79 and 2,831.72

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Solution

The fourth proportional to 4,805.51, 7,205.79 and 2,831.72 is: 4,246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.51 : 7,205.79 = 2,831.72 : x
  2. Step 2: Convert to fraction form
    4,805.51/7,205.79 = 2,831.72/x
  3. Step 3: Cross multiply
    4,805.51x = 7,205.79 × 2,831.72
  4. Step 4: Simplify right side
    4,805.51x = 20,404,779.66
  5. Step 5: Solve for x
    x = 20,404,779.66/4,805.51
  6. Step 6: Final answer
    x = 4,246.12

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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.