Home / 3,769.31-5,653.19-1,428.51

Finding the Fourth Proportional to 3,769.31, 5,653.19 and 1,428.51

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Solution

The fourth proportional to 3,769.31, 5,653.19 and 1,428.51 is: 2,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.31 : 5,653.19 = 1,428.51 : x
  2. Step 2: Convert to fraction form
    3,769.31/5,653.19 = 1,428.51/x
  3. Step 3: Cross multiply
    3,769.31x = 5,653.19 × 1,428.51
  4. Step 4: Simplify right side
    3,769.31x = 8,075,631.30
  5. Step 5: Solve for x
    x = 8,075,631.30/3,769.31
  6. Step 6: Final answer
    x = 2,142.47

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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.