Home / 6,860.60-10,290.62-2,910.78

Finding the Fourth Proportional to 6,860.60, 10,290.62 and 2,910.78

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Solution

The fourth proportional to 6,860.60, 10,290.62 and 2,910.78 is: 4,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.60 : 10,290.62 = 2,910.78 : x
  2. Step 2: Convert to fraction form
    6,860.60/10,290.62 = 2,910.78/x
  3. Step 3: Cross multiply
    6,860.60x = 10,290.62 × 2,910.78
  4. Step 4: Simplify right side
    6,860.60x = 29,953,730.88
  5. Step 5: Solve for x
    x = 29,953,730.88/6,860.60
  6. Step 6: Final answer
    x = 4,366.05

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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.