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Finding the Fourth Proportional to 2,667.49, 3,681.11 and 1,488.56

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Solution

The fourth proportional to 2,667.49, 3,681.11 and 1,488.56 is: 2,054.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,667.49 : 3,681.11 = 1,488.56 : x
  2. Step 2: Convert to fraction form
    2,667.49/3,681.11 = 1,488.56/x
  3. Step 3: Cross multiply
    2,667.49x = 3,681.11 × 1,488.56
  4. Step 4: Simplify right side
    2,667.49x = 5,479,538.42
  5. Step 5: Solve for x
    x = 5,479,538.42/2,667.49
  6. Step 6: Final answer
    x = 2,054.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.