Home / 3,020.75-4,169.37-1,842.80

Finding the Fourth Proportional to 3,020.75, 4,169.37 and 1,842.80

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Solution

The fourth proportional to 3,020.75, 4,169.37 and 1,842.80 is: 2,543.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.75 : 4,169.37 = 1,842.80 : x
  2. Step 2: Convert to fraction form
    3,020.75/4,169.37 = 1,842.80/x
  3. Step 3: Cross multiply
    3,020.75x = 4,169.37 × 1,842.80
  4. Step 4: Simplify right side
    3,020.75x = 7,683,315.04
  5. Step 5: Solve for x
    x = 7,683,315.04/3,020.75
  6. Step 6: Final answer
    x = 2,543.52

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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.