Home / 7,091.60-10,638.12-2,712.74

Finding the Fourth Proportional to 7,091.60, 10,638.12 and 2,712.74

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Solution

The fourth proportional to 7,091.60, 10,638.12 and 2,712.74 is: 4,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.60 : 10,638.12 = 2,712.74 : x
  2. Step 2: Convert to fraction form
    7,091.60/10,638.12 = 2,712.74/x
  3. Step 3: Cross multiply
    7,091.60x = 10,638.12 × 2,712.74
  4. Step 4: Simplify right side
    7,091.60x = 28,858,453.65
  5. Step 5: Solve for x
    x = 28,858,453.65/7,091.60
  6. Step 6: Final answer
    x = 4,069.39

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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.