Home / 1,262.32-1,904.77-1,211.75

Finding the Fourth Proportional to 1,262.32, 1,904.77 and 1,211.75

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Solution

The fourth proportional to 1,262.32, 1,904.77 and 1,211.75 is: 1,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.32 : 1,904.77 = 1,211.75 : x
  2. Step 2: Convert to fraction form
    1,262.32/1,904.77 = 1,211.75/x
  3. Step 3: Cross multiply
    1,262.32x = 1,904.77 × 1,211.75
  4. Step 4: Simplify right side
    1,262.32x = 2,308,092.49
  5. Step 5: Solve for x
    x = 2,308,092.49/1,262.32
  6. Step 6: Final answer
    x = 1,828.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.