Home / 3,391.25-4,679.93-1,899.18

Finding the Fourth Proportional to 3,391.25, 4,679.93 and 1,899.18

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Solution

The fourth proportional to 3,391.25, 4,679.93 and 1,899.18 is: 2,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.25 : 4,679.93 = 1,899.18 : x
  2. Step 2: Convert to fraction form
    3,391.25/4,679.93 = 1,899.18/x
  3. Step 3: Cross multiply
    3,391.25x = 4,679.93 × 1,899.18
  4. Step 4: Simplify right side
    3,391.25x = 8,888,034.21
  5. Step 5: Solve for x
    x = 8,888,034.21/3,391.25
  6. Step 6: Final answer
    x = 2,620.88

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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.