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Finding the Fourth Proportional to 2,805.67, 4,208.46 and 958.08

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Solution

The fourth proportional to 2,805.67, 4,208.46 and 958.08 is: 1,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.67 : 4,208.46 = 958.08 : x
  2. Step 2: Convert to fraction form
    2,805.67/4,208.46 = 958.08/x
  3. Step 3: Cross multiply
    2,805.67x = 4,208.46 × 958.08
  4. Step 4: Simplify right side
    2,805.67x = 4,032,037.96
  5. Step 5: Solve for x
    x = 4,032,037.96/2,805.67
  6. Step 6: Final answer
    x = 1,437.10

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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.