Home / 3,050.75-4,209.87-1,724.38

Finding the Fourth Proportional to 3,050.75, 4,209.87 and 1,724.38

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Solution

The fourth proportional to 3,050.75, 4,209.87 and 1,724.38 is: 2,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,050.75 : 4,209.87 = 1,724.38 : x
  2. Step 2: Convert to fraction form
    3,050.75/4,209.87 = 1,724.38/x
  3. Step 3: Cross multiply
    3,050.75x = 4,209.87 × 1,724.38
  4. Step 4: Simplify right side
    3,050.75x = 7,259,411.57
  5. Step 5: Solve for x
    x = 7,259,411.57/3,050.75
  6. Step 6: Final answer
    x = 2,379.55

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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.