Home / 7,087.97-9,780.99-4,103.60

Finding the Fourth Proportional to 7,087.97, 9,780.99 and 4,103.60

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Solution

The fourth proportional to 7,087.97, 9,780.99 and 4,103.60 is: 5,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.97 : 9,780.99 = 4,103.60 : x
  2. Step 2: Convert to fraction form
    7,087.97/9,780.99 = 4,103.60/x
  3. Step 3: Cross multiply
    7,087.97x = 9,780.99 × 4,103.60
  4. Step 4: Simplify right side
    7,087.97x = 40,137,206.27
  5. Step 5: Solve for x
    x = 40,137,206.27/7,087.97
  6. Step 6: Final answer
    x = 5,662.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.