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Finding the Fourth Proportional to 2,831.64, 4,236.42 and 2,503.32

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Solution

The fourth proportional to 2,831.64, 4,236.42 and 2,503.32 is: 3,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.64 : 4,236.42 = 2,503.32 : x
  2. Step 2: Convert to fraction form
    2,831.64/4,236.42 = 2,503.32/x
  3. Step 3: Cross multiply
    2,831.64x = 4,236.42 × 2,503.32
  4. Step 4: Simplify right side
    2,831.64x = 10,605,114.91
  5. Step 5: Solve for x
    x = 10,605,114.91/2,831.64
  6. Step 6: Final answer
    x = 3,745.22

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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.