Home / 4,831.65-7,241.40-4,309.20

Finding the Fourth Proportional to 4,831.65, 7,241.40 and 4,309.20

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Solution

The fourth proportional to 4,831.65, 7,241.40 and 4,309.20 is: 6,458.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.65 : 7,241.40 = 4,309.20 : x
  2. Step 2: Convert to fraction form
    4,831.65/7,241.40 = 4,309.20/x
  3. Step 3: Cross multiply
    4,831.65x = 7,241.40 × 4,309.20
  4. Step 4: Simplify right side
    4,831.65x = 31,204,640.88
  5. Step 5: Solve for x
    x = 31,204,640.88/4,831.65
  6. Step 6: Final answer
    x = 6,458.38

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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.