Home / 1,889.91-2,831.09-1,500.57

Finding the Fourth Proportional to 1,889.91, 2,831.09 and 1,500.57

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Solution

The fourth proportional to 1,889.91, 2,831.09 and 1,500.57 is: 2,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.91 : 2,831.09 = 1,500.57 : x
  2. Step 2: Convert to fraction form
    1,889.91/2,831.09 = 1,500.57/x
  3. Step 3: Cross multiply
    1,889.91x = 2,831.09 × 1,500.57
  4. Step 4: Simplify right side
    1,889.91x = 4,248,241.22
  5. Step 5: Solve for x
    x = 4,248,241.22/1,889.91
  6. Step 6: Final answer
    x = 2,247.85

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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.