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Finding the Fourth Proportional to 2,243.08, 3,365.16 and 782.29

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Solution

The fourth proportional to 2,243.08, 3,365.16 and 782.29 is: 1,173.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,243.08 : 3,365.16 = 782.29 : x
  2. Step 2: Convert to fraction form
    2,243.08/3,365.16 = 782.29/x
  3. Step 3: Cross multiply
    2,243.08x = 3,365.16 × 782.29
  4. Step 4: Simplify right side
    2,243.08x = 2,632,531.02
  5. Step 5: Solve for x
    x = 2,632,531.02/2,243.08
  6. Step 6: Final answer
    x = 1,173.62

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1.5x scale

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.