Home / 1,331.22-1,835.73-1,145.33

Finding the Fourth Proportional to 1,331.22, 1,835.73 and 1,145.33

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Solution

The fourth proportional to 1,331.22, 1,835.73 and 1,145.33 is: 1,579.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.22 : 1,835.73 = 1,145.33 : x
  2. Step 2: Convert to fraction form
    1,331.22/1,835.73 = 1,145.33/x
  3. Step 3: Cross multiply
    1,331.22x = 1,835.73 × 1,145.33
  4. Step 4: Simplify right side
    1,331.22x = 2,102,516.64
  5. Step 5: Solve for x
    x = 2,102,516.64/1,331.22
  6. Step 6: Final answer
    x = 1,579.39

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1.5x scale

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.