Home / 7,954.64-11,928.48-3,271.52

Finding the Fourth Proportional to 7,954.64, 11,928.48 and 3,271.52

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Solution

The fourth proportional to 7,954.64, 11,928.48 and 3,271.52 is: 4,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.64 : 11,928.48 = 3,271.52 : x
  2. Step 2: Convert to fraction form
    7,954.64/11,928.48 = 3,271.52/x
  3. Step 3: Cross multiply
    7,954.64x = 11,928.48 × 3,271.52
  4. Step 4: Simplify right side
    7,954.64x = 39,024,260.89
  5. Step 5: Solve for x
    x = 39,024,260.89/7,954.64
  6. Step 6: Final answer
    x = 4,905.85

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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.