Home / 3,981.60-5,959.44-2,812.32

Finding the Fourth Proportional to 3,981.60, 5,959.44 and 2,812.32

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Solution

The fourth proportional to 3,981.60, 5,959.44 and 2,812.32 is: 4,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.60 : 5,959.44 = 2,812.32 : x
  2. Step 2: Convert to fraction form
    3,981.60/5,959.44 = 2,812.32/x
  3. Step 3: Cross multiply
    3,981.60x = 5,959.44 × 2,812.32
  4. Step 4: Simplify right side
    3,981.60x = 16,759,852.30
  5. Step 5: Solve for x
    x = 16,759,852.30/3,981.60
  6. Step 6: Final answer
    x = 4,209.33

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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.