Home / 3,021.96-4,170.53-1,677.65

Finding the Fourth Proportional to 3,021.96, 4,170.53 and 1,677.65

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Solution

The fourth proportional to 3,021.96, 4,170.53 and 1,677.65 is: 2,315.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.96 : 4,170.53 = 1,677.65 : x
  2. Step 2: Convert to fraction form
    3,021.96/4,170.53 = 1,677.65/x
  3. Step 3: Cross multiply
    3,021.96x = 4,170.53 × 1,677.65
  4. Step 4: Simplify right side
    3,021.96x = 6,996,660.41
  5. Step 5: Solve for x
    x = 6,996,660.41/3,021.96
  6. Step 6: Final answer
    x = 2,315.27

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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.