Home / 2,629.44-3,628.80-1,699.20

Finding the Fourth Proportional to 2,629.44, 3,628.80 and 1,699.20

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Solution

The fourth proportional to 2,629.44, 3,628.80 and 1,699.20 is: 2,345.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.44 : 3,628.80 = 1,699.20 : x
  2. Step 2: Convert to fraction form
    2,629.44/3,628.80 = 1,699.20/x
  3. Step 3: Cross multiply
    2,629.44x = 3,628.80 × 1,699.20
  4. Step 4: Simplify right side
    2,629.44x = 6,166,056.96
  5. Step 5: Solve for x
    x = 6,166,056.96/2,629.44
  6. Step 6: Final answer
    x = 2,345.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.