Home / 3,255.74-4,490.60-2,119.31

Finding the Fourth Proportional to 3,255.74, 4,490.60 and 2,119.31

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Solution

The fourth proportional to 3,255.74, 4,490.60 and 2,119.31 is: 2,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.74 : 4,490.60 = 2,119.31 : x
  2. Step 2: Convert to fraction form
    3,255.74/4,490.60 = 2,119.31/x
  3. Step 3: Cross multiply
    3,255.74x = 4,490.60 × 2,119.31
  4. Step 4: Simplify right side
    3,255.74x = 9,516,962.89
  5. Step 5: Solve for x
    x = 9,516,962.89/3,255.74
  6. Step 6: Final answer
    x = 2,923.13

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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.