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Finding the Fourth Proportional to 1,589.37, 2,383.47 and 549.11

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Solution

The fourth proportional to 1,589.37, 2,383.47 and 549.11 is: 823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.37 : 2,383.47 = 549.11 : x
  2. Step 2: Convert to fraction form
    1,589.37/2,383.47 = 549.11/x
  3. Step 3: Cross multiply
    1,589.37x = 2,383.47 × 549.11
  4. Step 4: Simplify right side
    1,589.37x = 1,308,775.29
  5. Step 5: Solve for x
    x = 1,308,775.29/1,589.37
  6. Step 6: Final answer
    x = 823.46

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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.