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Finding the Fourth Proportional to 1,623.65, 2,241.47 and 995.09

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Solution

The fourth proportional to 1,623.65, 2,241.47 and 995.09 is: 1,373.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.65 : 2,241.47 = 995.09 : x
  2. Step 2: Convert to fraction form
    1,623.65/2,241.47 = 995.09/x
  3. Step 3: Cross multiply
    1,623.65x = 2,241.47 × 995.09
  4. Step 4: Simplify right side
    1,623.65x = 2,230,455.66
  5. Step 5: Solve for x
    x = 2,230,455.66/1,623.65
  6. Step 6: Final answer
    x = 1,373.73

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1.5x scale

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.