Home / 3,391.61-4,679.37-1,899.32

Finding the Fourth Proportional to 3,391.61, 4,679.37 and 1,899.32

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Solution

The fourth proportional to 3,391.61, 4,679.37 and 1,899.32 is: 2,620.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.61 : 4,679.37 = 1,899.32 : x
  2. Step 2: Convert to fraction form
    3,391.61/4,679.37 = 1,899.32/x
  3. Step 3: Cross multiply
    3,391.61x = 4,679.37 × 1,899.32
  4. Step 4: Simplify right side
    3,391.61x = 8,887,597.63
  5. Step 5: Solve for x
    x = 8,887,597.63/3,391.61
  6. Step 6: Final answer
    x = 2,620.47

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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.