Home / 4,192.88-5,782.20-3,196.40

Finding the Fourth Proportional to 4,192.88, 5,782.20 and 3,196.40

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Solution

The fourth proportional to 4,192.88, 5,782.20 and 3,196.40 is: 4,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.88 : 5,782.20 = 3,196.40 : x
  2. Step 2: Convert to fraction form
    4,192.88/5,782.20 = 3,196.40/x
  3. Step 3: Cross multiply
    4,192.88x = 5,782.20 × 3,196.40
  4. Step 4: Simplify right side
    4,192.88x = 18,482,224.08
  5. Step 5: Solve for x
    x = 18,482,224.08/4,192.88
  6. Step 6: Final answer
    x = 4,408.00

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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.