Home / 3,391.16-4,679.68-1,899.01

Finding the Fourth Proportional to 3,391.16, 4,679.68 and 1,899.01

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Solution

The fourth proportional to 3,391.16, 4,679.68 and 1,899.01 is: 2,620.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.16 : 4,679.68 = 1,899.01 : x
  2. Step 2: Convert to fraction form
    3,391.16/4,679.68 = 1,899.01/x
  3. Step 3: Cross multiply
    3,391.16x = 4,679.68 × 1,899.01
  4. Step 4: Simplify right side
    3,391.16x = 8,886,726.22
  5. Step 5: Solve for x
    x = 8,886,726.22/3,391.16
  6. Step 6: Final answer
    x = 2,620.56

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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.