Home / 1,475.22-2,213.58-1,128.33

Finding the Fourth Proportional to 1,475.22, 2,213.58 and 1,128.33

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Solution

The fourth proportional to 1,475.22, 2,213.58 and 1,128.33 is: 1,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.22 : 2,213.58 = 1,128.33 : x
  2. Step 2: Convert to fraction form
    1,475.22/2,213.58 = 1,128.33/x
  3. Step 3: Cross multiply
    1,475.22x = 2,213.58 × 1,128.33
  4. Step 4: Simplify right side
    1,475.22x = 2,497,648.72
  5. Step 5: Solve for x
    x = 2,497,648.72/1,475.22
  6. Step 6: Final answer
    x = 1,693.07

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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.