Home / 1,394.13-2,088.36-1,118.73

Finding the Fourth Proportional to 1,394.13, 2,088.36 and 1,118.73

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Solution

The fourth proportional to 1,394.13, 2,088.36 and 1,118.73 is: 1,675.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.13 : 2,088.36 = 1,118.73 : x
  2. Step 2: Convert to fraction form
    1,394.13/2,088.36 = 1,118.73/x
  3. Step 3: Cross multiply
    1,394.13x = 2,088.36 × 1,118.73
  4. Step 4: Simplify right side
    1,394.13x = 2,336,310.98
  5. Step 5: Solve for x
    x = 2,336,310.98/1,394.13
  6. Step 6: Final answer
    x = 1,675.82

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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.