Home / 1,901.64-2,845.50-1,122

Finding the Fourth Proportional to 1,901.64, 2,845.50 and 1,122

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Solution

The fourth proportional to 1,901.64, 2,845.50 and 1,122 is: 1,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.64 : 2,845.50 = 1,122 : x
  2. Step 2: Convert to fraction form
    1,901.64/2,845.50 = 1,122/x
  3. Step 3: Cross multiply
    1,901.64x = 2,845.50 × 1,122
  4. Step 4: Simplify right side
    1,901.64x = 3,192,651
  5. Step 5: Solve for x
    x = 3,192,651/1,901.64
  6. Step 6: Final answer
    x = 1,678.89

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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.