Home / 5,429.60-8,137.20-2,831.84

Finding the Fourth Proportional to 5,429.60, 8,137.20 and 2,831.84

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Solution

The fourth proportional to 5,429.60, 8,137.20 and 2,831.84 is: 4,244.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.60 : 8,137.20 = 2,831.84 : x
  2. Step 2: Convert to fraction form
    5,429.60/8,137.20 = 2,831.84/x
  3. Step 3: Cross multiply
    5,429.60x = 8,137.20 × 2,831.84
  4. Step 4: Simplify right side
    5,429.60x = 23,043,248.45
  5. Step 5: Solve for x
    x = 23,043,248.45/5,429.60
  6. Step 6: Final answer
    x = 4,244.00

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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.