Home / 1,294.28-1,786.09-704.82

Finding the Fourth Proportional to 1,294.28, 1,786.09 and 704.82

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Solution

The fourth proportional to 1,294.28, 1,786.09 and 704.82 is: 972.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.28 : 1,786.09 = 704.82 : x
  2. Step 2: Convert to fraction form
    1,294.28/1,786.09 = 704.82/x
  3. Step 3: Cross multiply
    1,294.28x = 1,786.09 × 704.82
  4. Step 4: Simplify right side
    1,294.28x = 1,258,867.49
  5. Step 5: Solve for x
    x = 1,258,867.49/1,294.28
  6. Step 6: Final answer
    x = 972.64

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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.