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Finding the Fourth Proportional to 1,165.88, 1,749.10 and 982.84

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Solution

The fourth proportional to 1,165.88, 1,749.10 and 982.84 is: 1,474.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.88 : 1,749.10 = 982.84 : x
  2. Step 2: Convert to fraction form
    1,165.88/1,749.10 = 982.84/x
  3. Step 3: Cross multiply
    1,165.88x = 1,749.10 × 982.84
  4. Step 4: Simplify right side
    1,165.88x = 1,719,085.44
  5. Step 5: Solve for x
    x = 1,719,085.44/1,165.88
  6. Step 6: Final answer
    x = 1,474.50

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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.