Home / 3,908.36-5,389.48-2,580.36

Finding the Fourth Proportional to 3,908.36, 5,389.48 and 2,580.36

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Solution

The fourth proportional to 3,908.36, 5,389.48 and 2,580.36 is: 3,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.36 : 5,389.48 = 2,580.36 : x
  2. Step 2: Convert to fraction form
    3,908.36/5,389.48 = 2,580.36/x
  3. Step 3: Cross multiply
    3,908.36x = 5,389.48 × 2,580.36
  4. Step 4: Simplify right side
    3,908.36x = 13,906,798.61
  5. Step 5: Solve for x
    x = 13,906,798.61/3,908.36
  6. Step 6: Final answer
    x = 3,558.22

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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.