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Finding the Fourth Proportional to 1,091.79, 1,635.09 and 597.46

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Solution

The fourth proportional to 1,091.79, 1,635.09 and 597.46 is: 894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.79 : 1,635.09 = 597.46 : x
  2. Step 2: Convert to fraction form
    1,091.79/1,635.09 = 597.46/x
  3. Step 3: Cross multiply
    1,091.79x = 1,635.09 × 597.46
  4. Step 4: Simplify right side
    1,091.79x = 976,894.16
  5. Step 5: Solve for x
    x = 976,894.16/1,091.79
  6. Step 6: Final answer
    x = 894.76

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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.