Home / 1,412.67-2,114.40-1,277.94

Finding the Fourth Proportional to 1,412.67, 2,114.40 and 1,277.94

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Solution

The fourth proportional to 1,412.67, 2,114.40 and 1,277.94 is: 1,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.67 : 2,114.40 = 1,277.94 : x
  2. Step 2: Convert to fraction form
    1,412.67/2,114.40 = 1,277.94/x
  3. Step 3: Cross multiply
    1,412.67x = 2,114.40 × 1,277.94
  4. Step 4: Simplify right side
    1,412.67x = 2,702,076.34
  5. Step 5: Solve for x
    x = 2,702,076.34/1,412.67
  6. Step 6: Final answer
    x = 1,912.74

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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.