Home / 4,455.45-6,678.78-2,111.34

Finding the Fourth Proportional to 4,455.45, 6,678.78 and 2,111.34

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Solution

The fourth proportional to 4,455.45, 6,678.78 and 2,111.34 is: 3,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455.45 : 6,678.78 = 2,111.34 : x
  2. Step 2: Convert to fraction form
    4,455.45/6,678.78 = 2,111.34/x
  3. Step 3: Cross multiply
    4,455.45x = 6,678.78 × 2,111.34
  4. Step 4: Simplify right side
    4,455.45x = 14,101,175.37
  5. Step 5: Solve for x
    x = 14,101,175.37/4,455.45
  6. Step 6: Final answer
    x = 3,164.93

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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.