Home / 1,284.49-1,771.67-1,241.63

Finding the Fourth Proportional to 1,284.49, 1,771.67 and 1,241.63

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Solution

The fourth proportional to 1,284.49, 1,771.67 and 1,241.63 is: 1,712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.49 : 1,771.67 = 1,241.63 : x
  2. Step 2: Convert to fraction form
    1,284.49/1,771.67 = 1,241.63/x
  3. Step 3: Cross multiply
    1,284.49x = 1,771.67 × 1,241.63
  4. Step 4: Simplify right side
    1,284.49x = 2,199,759.51
  5. Step 5: Solve for x
    x = 2,199,759.51/1,284.49
  6. Step 6: Final answer
    x = 1,712.55

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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.