Home / 7,345.44-11,009.52-3,880.80

Finding the Fourth Proportional to 7,345.44, 11,009.52 and 3,880.80

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Solution

The fourth proportional to 7,345.44, 11,009.52 and 3,880.80 is: 5,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.44 : 11,009.52 = 3,880.80 : x
  2. Step 2: Convert to fraction form
    7,345.44/11,009.52 = 3,880.80/x
  3. Step 3: Cross multiply
    7,345.44x = 11,009.52 × 3,880.80
  4. Step 4: Simplify right side
    7,345.44x = 42,725,745.22
  5. Step 5: Solve for x
    x = 42,725,745.22/7,345.44
  6. Step 6: Final answer
    x = 5,816.64

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1.5x scale

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.