Home / 1,966.21-2,713.48-1,127.17

Finding the Fourth Proportional to 1,966.21, 2,713.48 and 1,127.17

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Solution

The fourth proportional to 1,966.21, 2,713.48 and 1,127.17 is: 1,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.21 : 2,713.48 = 1,127.17 : x
  2. Step 2: Convert to fraction form
    1,966.21/2,713.48 = 1,127.17/x
  3. Step 3: Cross multiply
    1,966.21x = 2,713.48 × 1,127.17
  4. Step 4: Simplify right side
    1,966.21x = 3,058,553.25
  5. Step 5: Solve for x
    x = 3,058,553.25/1,966.21
  6. Step 6: Final answer
    x = 1,555.56

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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.