Home / 3,125.67-4,313.43-1,728.42

Finding the Fourth Proportional to 3,125.67, 4,313.43 and 1,728.42

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Solution

The fourth proportional to 3,125.67, 4,313.43 and 1,728.42 is: 2,385.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.67 : 4,313.43 = 1,728.42 : x
  2. Step 2: Convert to fraction form
    3,125.67/4,313.43 = 1,728.42/x
  3. Step 3: Cross multiply
    3,125.67x = 4,313.43 × 1,728.42
  4. Step 4: Simplify right side
    3,125.67x = 7,455,418.68
  5. Step 5: Solve for x
    x = 7,455,418.68/3,125.67
  6. Step 6: Final answer
    x = 2,385.22

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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.