Home / 4,128.37-6,192.75-1,355.13

Finding the Fourth Proportional to 4,128.37, 6,192.75 and 1,355.13

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Solution

The fourth proportional to 4,128.37, 6,192.75 and 1,355.13 is: 2,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.37 : 6,192.75 = 1,355.13 : x
  2. Step 2: Convert to fraction form
    4,128.37/6,192.75 = 1,355.13/x
  3. Step 3: Cross multiply
    4,128.37x = 6,192.75 × 1,355.13
  4. Step 4: Simplify right side
    4,128.37x = 8,391,986.39
  5. Step 5: Solve for x
    x = 8,391,986.39/4,128.37
  6. Step 6: Final answer
    x = 2,032.76

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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.