Home / 4,128.22-6,192.48-1,354.78

Finding the Fourth Proportional to 4,128.22, 6,192.48 and 1,354.78

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Solution

The fourth proportional to 4,128.22, 6,192.48 and 1,354.78 is: 2,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.22 : 6,192.48 = 1,354.78 : x
  2. Step 2: Convert to fraction form
    4,128.22/6,192.48 = 1,354.78/x
  3. Step 3: Cross multiply
    4,128.22x = 6,192.48 × 1,354.78
  4. Step 4: Simplify right side
    4,128.22x = 8,389,448.05
  5. Step 5: Solve for x
    x = 8,389,448.05/4,128.22
  6. Step 6: Final answer
    x = 2,032.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.