Home / 3,125.94-4,313.72-1,709.66

Finding the Fourth Proportional to 3,125.94, 4,313.72 and 1,709.66

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Solution

The fourth proportional to 3,125.94, 4,313.72 and 1,709.66 is: 2,359.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.94 : 4,313.72 = 1,709.66 : x
  2. Step 2: Convert to fraction form
    3,125.94/4,313.72 = 1,709.66/x
  3. Step 3: Cross multiply
    3,125.94x = 4,313.72 × 1,709.66
  4. Step 4: Simplify right side
    3,125.94x = 7,374,994.54
  5. Step 5: Solve for x
    x = 7,374,994.54/3,125.94
  6. Step 6: Final answer
    x = 2,359.29

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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.