Home / 3,782.79-5,220.30-2,104.26

Finding the Fourth Proportional to 3,782.79, 5,220.30 and 2,104.26

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Solution

The fourth proportional to 3,782.79, 5,220.30 and 2,104.26 is: 2,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.79 : 5,220.30 = 2,104.26 : x
  2. Step 2: Convert to fraction form
    3,782.79/5,220.30 = 2,104.26/x
  3. Step 3: Cross multiply
    3,782.79x = 5,220.30 × 2,104.26
  4. Step 4: Simplify right side
    3,782.79x = 10,984,868.48
  5. Step 5: Solve for x
    x = 10,984,868.48/3,782.79
  6. Step 6: Final answer
    x = 2,903.91

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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.