Home / 7,512.72-11,269.08-2,831.46

Finding the Fourth Proportional to 7,512.72, 11,269.08 and 2,831.46

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Solution

The fourth proportional to 7,512.72, 11,269.08 and 2,831.46 is: 4,247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.72 : 11,269.08 = 2,831.46 : x
  2. Step 2: Convert to fraction form
    7,512.72/11,269.08 = 2,831.46/x
  3. Step 3: Cross multiply
    7,512.72x = 11,269.08 × 2,831.46
  4. Step 4: Simplify right side
    7,512.72x = 31,907,949.26
  5. Step 5: Solve for x
    x = 31,907,949.26/7,512.72
  6. Step 6: Final answer
    x = 4,247.19

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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.