Home / 1,180.64-1,629.50-900.44

Finding the Fourth Proportional to 1,180.64, 1,629.50 and 900.44

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Solution

The fourth proportional to 1,180.64, 1,629.50 and 900.44 is: 1,242.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.64 : 1,629.50 = 900.44 : x
  2. Step 2: Convert to fraction form
    1,180.64/1,629.50 = 900.44/x
  3. Step 3: Cross multiply
    1,180.64x = 1,629.50 × 900.44
  4. Step 4: Simplify right side
    1,180.64x = 1,467,266.98
  5. Step 5: Solve for x
    x = 1,467,266.98/1,180.64
  6. Step 6: Final answer
    x = 1,242.77

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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.