Home / 5,221.18-7,831.79-1,523.50

Finding the Fourth Proportional to 5,221.18, 7,831.79 and 1,523.50

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Solution

The fourth proportional to 5,221.18, 7,831.79 and 1,523.50 is: 2,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.18 : 7,831.79 = 1,523.50 : x
  2. Step 2: Convert to fraction form
    5,221.18/7,831.79 = 1,523.50/x
  3. Step 3: Cross multiply
    5,221.18x = 7,831.79 × 1,523.50
  4. Step 4: Simplify right side
    5,221.18x = 11,931,732.07
  5. Step 5: Solve for x
    x = 11,931,732.07/5,221.18
  6. Step 6: Final answer
    x = 2,285.26

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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.