Home / 7,913.44-11,870.40-3,296.80

Finding the Fourth Proportional to 7,913.44, 11,870.40 and 3,296.80

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Solution

The fourth proportional to 7,913.44, 11,870.40 and 3,296.80 is: 4,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.44 : 11,870.40 = 3,296.80 : x
  2. Step 2: Convert to fraction form
    7,913.44/11,870.40 = 3,296.80/x
  3. Step 3: Cross multiply
    7,913.44x = 11,870.40 × 3,296.80
  4. Step 4: Simplify right side
    7,913.44x = 39,134,334.72
  5. Step 5: Solve for x
    x = 39,134,334.72/7,913.44
  6. Step 6: Final answer
    x = 4,945.30

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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.