Home / 3,629.76-5,445.58-1,407.92

Finding the Fourth Proportional to 3,629.76, 5,445.58 and 1,407.92

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Solution

The fourth proportional to 3,629.76, 5,445.58 and 1,407.92 is: 2,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.76 : 5,445.58 = 1,407.92 : x
  2. Step 2: Convert to fraction form
    3,629.76/5,445.58 = 1,407.92/x
  3. Step 3: Cross multiply
    3,629.76x = 5,445.58 × 1,407.92
  4. Step 4: Simplify right side
    3,629.76x = 7,666,940.99
  5. Step 5: Solve for x
    x = 7,666,940.99/3,629.76
  6. Step 6: Final answer
    x = 2,112.24

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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.