Home / 7,321.60-10,975.46-2,387.80

Finding the Fourth Proportional to 7,321.60, 10,975.46 and 2,387.80

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Solution

The fourth proportional to 7,321.60, 10,975.46 and 2,387.80 is: 3,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.60 : 10,975.46 = 2,387.80 : x
  2. Step 2: Convert to fraction form
    7,321.60/10,975.46 = 2,387.80/x
  3. Step 3: Cross multiply
    7,321.60x = 10,975.46 × 2,387.80
  4. Step 4: Simplify right side
    7,321.60x = 26,207,203.39
  5. Step 5: Solve for x
    x = 26,207,203.39/7,321.60
  6. Step 6: Final answer
    x = 3,579.44

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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.