Home / 3,208.91-4,815.39-1,261.07

Finding the Fourth Proportional to 3,208.91, 4,815.39 and 1,261.07

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Solution

The fourth proportional to 3,208.91, 4,815.39 and 1,261.07 is: 1,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.91 : 4,815.39 = 1,261.07 : x
  2. Step 2: Convert to fraction form
    3,208.91/4,815.39 = 1,261.07/x
  3. Step 3: Cross multiply
    3,208.91x = 4,815.39 × 1,261.07
  4. Step 4: Simplify right side
    3,208.91x = 6,072,543.87
  5. Step 5: Solve for x
    x = 6,072,543.87/3,208.91
  6. Step 6: Final answer
    x = 1,892.40

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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.