Home / 3,379.90-4,664.43-1,887.79

Finding the Fourth Proportional to 3,379.90, 4,664.43 and 1,887.79

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Solution

The fourth proportional to 3,379.90, 4,664.43 and 1,887.79 is: 2,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.90 : 4,664.43 = 1,887.79 : x
  2. Step 2: Convert to fraction form
    3,379.90/4,664.43 = 1,887.79/x
  3. Step 3: Cross multiply
    3,379.90x = 4,664.43 × 1,887.79
  4. Step 4: Simplify right side
    3,379.90x = 8,805,464.31
  5. Step 5: Solve for x
    x = 8,805,464.31/3,379.90
  6. Step 6: Final answer
    x = 2,605.24

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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.