Home / 3,022.35-4,171.06-1,678.03

Finding the Fourth Proportional to 3,022.35, 4,171.06 and 1,678.03

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Solution

The fourth proportional to 3,022.35, 4,171.06 and 1,678.03 is: 2,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.35 : 4,171.06 = 1,678.03 : x
  2. Step 2: Convert to fraction form
    3,022.35/4,171.06 = 1,678.03/x
  3. Step 3: Cross multiply
    3,022.35x = 4,171.06 × 1,678.03
  4. Step 4: Simplify right side
    3,022.35x = 6,999,163.81
  5. Step 5: Solve for x
    x = 6,999,163.81/3,022.35
  6. Step 6: Final answer
    x = 2,315.80

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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.