Home / 1,284.36-1,771.14-1,034.88

Finding the Fourth Proportional to 1,284.36, 1,771.14 and 1,034.88

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Solution

The fourth proportional to 1,284.36, 1,771.14 and 1,034.88 is: 1,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.36 : 1,771.14 = 1,034.88 : x
  2. Step 2: Convert to fraction form
    1,284.36/1,771.14 = 1,034.88/x
  3. Step 3: Cross multiply
    1,284.36x = 1,771.14 × 1,034.88
  4. Step 4: Simplify right side
    1,284.36x = 1,832,917.36
  5. Step 5: Solve for x
    x = 1,832,917.36/1,284.36
  6. Step 6: Final answer
    x = 1,427.11

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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.