Home / 7,274.32-10,915.62-2,831.41

Finding the Fourth Proportional to 7,274.32, 10,915.62 and 2,831.41

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Solution

The fourth proportional to 7,274.32, 10,915.62 and 2,831.41 is: 4,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.32 : 10,915.62 = 2,831.41 : x
  2. Step 2: Convert to fraction form
    7,274.32/10,915.62 = 2,831.41/x
  3. Step 3: Cross multiply
    7,274.32x = 10,915.62 × 2,831.41
  4. Step 4: Simplify right side
    7,274.32x = 30,906,539.24
  5. Step 5: Solve for x
    x = 30,906,539.24/7,274.32
  6. Step 6: Final answer
    x = 4,248.72

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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.