Home / 7,981.54-11,977.30-3,051.60

Finding the Fourth Proportional to 7,981.54, 11,977.30 and 3,051.60

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Solution

The fourth proportional to 7,981.54, 11,977.30 and 3,051.60 is: 4,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.54 : 11,977.30 = 3,051.60 : x
  2. Step 2: Convert to fraction form
    7,981.54/11,977.30 = 3,051.60/x
  3. Step 3: Cross multiply
    7,981.54x = 11,977.30 × 3,051.60
  4. Step 4: Simplify right side
    7,981.54x = 36,549,928.68
  5. Step 5: Solve for x
    x = 36,549,928.68/7,981.54
  6. Step 6: Final answer
    x = 4,579.31

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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.