Home / 1,166.70-1,749.33-435.90

Finding the Fourth Proportional to 1,166.70, 1,749.33 and 435.90

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Solution

The fourth proportional to 1,166.70, 1,749.33 and 435.90 is: 653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.70 : 1,749.33 = 435.90 : x
  2. Step 2: Convert to fraction form
    1,166.70/1,749.33 = 435.90/x
  3. Step 3: Cross multiply
    1,166.70x = 1,749.33 × 435.90
  4. Step 4: Simplify right side
    1,166.70x = 762,532.95
  5. Step 5: Solve for x
    x = 762,532.95/1,166.70
  6. Step 6: Final answer
    x = 653.58

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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.