Home / 1,927.84-2,886.24-1,277.28

Finding the Fourth Proportional to 1,927.84, 2,886.24 and 1,277.28

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Solution

The fourth proportional to 1,927.84, 2,886.24 and 1,277.28 is: 1,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.84 : 2,886.24 = 1,277.28 : x
  2. Step 2: Convert to fraction form
    1,927.84/2,886.24 = 1,277.28/x
  3. Step 3: Cross multiply
    1,927.84x = 2,886.24 × 1,277.28
  4. Step 4: Simplify right side
    1,927.84x = 3,686,536.63
  5. Step 5: Solve for x
    x = 3,686,536.63/1,927.84
  6. Step 6: Final answer
    x = 1,912.26

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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.