Home / 1,966.77-2,713.28-1,219.23

Finding the Fourth Proportional to 1,966.77, 2,713.28 and 1,219.23

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Solution

The fourth proportional to 1,966.77, 2,713.28 and 1,219.23 is: 1,682.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.77 : 2,713.28 = 1,219.23 : x
  2. Step 2: Convert to fraction form
    1,966.77/2,713.28 = 1,219.23/x
  3. Step 3: Cross multiply
    1,966.77x = 2,713.28 × 1,219.23
  4. Step 4: Simplify right side
    1,966.77x = 3,308,106.28
  5. Step 5: Solve for x
    x = 3,308,106.28/1,966.77
  6. Step 6: Final answer
    x = 1,682.00

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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.