Home / 3,215.62-4,815.64-2,225.66

Finding the Fourth Proportional to 3,215.62, 4,815.64 and 2,225.66

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Solution

The fourth proportional to 3,215.62, 4,815.64 and 2,225.66 is: 3,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.62 : 4,815.64 = 2,225.66 : x
  2. Step 2: Convert to fraction form
    3,215.62/4,815.64 = 2,225.66/x
  3. Step 3: Cross multiply
    3,215.62x = 4,815.64 × 2,225.66
  4. Step 4: Simplify right side
    3,215.62x = 10,717,977.32
  5. Step 5: Solve for x
    x = 10,717,977.32/3,215.62
  6. Step 6: Final answer
    x = 3,333.10

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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.