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Finding the Fourth Proportional to 1,675.82, 2,312.28 and 967.65

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Solution

The fourth proportional to 1,675.82, 2,312.28 and 967.65 is: 1,335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.82 : 2,312.28 = 967.65 : x
  2. Step 2: Convert to fraction form
    1,675.82/2,312.28 = 967.65/x
  3. Step 3: Cross multiply
    1,675.82x = 2,312.28 × 967.65
  4. Step 4: Simplify right side
    1,675.82x = 2,237,481.37
  5. Step 5: Solve for x
    x = 2,237,481.37/1,675.82
  6. Step 6: Final answer
    x = 1,335.16

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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.