Home / 2,831.12-4,247.16-882.94

Finding the Fourth Proportional to 2,831.12, 4,247.16 and 882.94

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Solution

The fourth proportional to 2,831.12, 4,247.16 and 882.94 is: 1,324.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.12 : 4,247.16 = 882.94 : x
  2. Step 2: Convert to fraction form
    2,831.12/4,247.16 = 882.94/x
  3. Step 3: Cross multiply
    2,831.12x = 4,247.16 × 882.94
  4. Step 4: Simplify right side
    2,831.12x = 3,749,987.45
  5. Step 5: Solve for x
    x = 3,749,987.45/2,831.12
  6. Step 6: Final answer
    x = 1,324.56

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1.5x scale

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.