Home / 1,445.54-2,166.44-829.58

Finding the Fourth Proportional to 1,445.54, 2,166.44 and 829.58

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Solution

The fourth proportional to 1,445.54, 2,166.44 and 829.58 is: 1,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.54 : 2,166.44 = 829.58 : x
  2. Step 2: Convert to fraction form
    1,445.54/2,166.44 = 829.58/x
  3. Step 3: Cross multiply
    1,445.54x = 2,166.44 × 829.58
  4. Step 4: Simplify right side
    1,445.54x = 1,797,235.30
  5. Step 5: Solve for x
    x = 1,797,235.30/1,445.54
  6. Step 6: Final answer
    x = 1,243.30

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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.