Home / 3,390.36-4,678.97-2,063.58

Finding the Fourth Proportional to 3,390.36, 4,678.97 and 2,063.58

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Solution

The fourth proportional to 3,390.36, 4,678.97 and 2,063.58 is: 2,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.36 : 4,678.97 = 2,063.58 : x
  2. Step 2: Convert to fraction form
    3,390.36/4,678.97 = 2,063.58/x
  3. Step 3: Cross multiply
    3,390.36x = 4,678.97 × 2,063.58
  4. Step 4: Simplify right side
    3,390.36x = 9,655,401.05
  5. Step 5: Solve for x
    x = 9,655,401.05/3,390.36
  6. Step 6: Final answer
    x = 2,847.90

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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.