Home / 1,093.61-1,628.04-1,087.12

Finding the Fourth Proportional to 1,093.61, 1,628.04 and 1,087.12

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Solution

The fourth proportional to 1,093.61, 1,628.04 and 1,087.12 is: 1,618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.61 : 1,628.04 = 1,087.12 : x
  2. Step 2: Convert to fraction form
    1,093.61/1,628.04 = 1,087.12/x
  3. Step 3: Cross multiply
    1,093.61x = 1,628.04 × 1,087.12
  4. Step 4: Simplify right side
    1,093.61x = 1,769,874.84
  5. Step 5: Solve for x
    x = 1,769,874.84/1,093.61
  6. Step 6: Final answer
    x = 1,618.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.