Home / 1,204.36-1,807.08-1,109.32

Finding the Fourth Proportional to 1,204.36, 1,807.08 and 1,109.32

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Solution

The fourth proportional to 1,204.36, 1,807.08 and 1,109.32 is: 1,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.36 : 1,807.08 = 1,109.32 : x
  2. Step 2: Convert to fraction form
    1,204.36/1,807.08 = 1,109.32/x
  3. Step 3: Cross multiply
    1,204.36x = 1,807.08 × 1,109.32
  4. Step 4: Simplify right side
    1,204.36x = 2,004,629.99
  5. Step 5: Solve for x
    x = 2,004,629.99/1,204.36
  6. Step 6: Final answer
    x = 1,664.48

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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.