Home / 1,166.30-1,749.40-435.88

Finding the Fourth Proportional to 1,166.30, 1,749.40 and 435.88

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Solution

The fourth proportional to 1,166.30, 1,749.40 and 435.88 is: 653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.30 : 1,749.40 = 435.88 : x
  2. Step 2: Convert to fraction form
    1,166.30/1,749.40 = 435.88/x
  3. Step 3: Cross multiply
    1,166.30x = 1,749.40 × 435.88
  4. Step 4: Simplify right side
    1,166.30x = 762,529.57
  5. Step 5: Solve for x
    x = 762,529.57/1,166.30
  6. Step 6: Final answer
    x = 653.80

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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.