Home / 3,419.94-5,127.81-1,571.63

Finding the Fourth Proportional to 3,419.94, 5,127.81 and 1,571.63

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Solution

The fourth proportional to 3,419.94, 5,127.81 and 1,571.63 is: 2,356.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.94 : 5,127.81 = 1,571.63 : x
  2. Step 2: Convert to fraction form
    3,419.94/5,127.81 = 1,571.63/x
  3. Step 3: Cross multiply
    3,419.94x = 5,127.81 × 1,571.63
  4. Step 4: Simplify right side
    3,419.94x = 8,058,994.39
  5. Step 5: Solve for x
    x = 8,058,994.39/3,419.94
  6. Step 6: Final answer
    x = 2,356.47

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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.