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Finding the Fourth Proportional to 2,389.18, 3,583.16 and 849.82

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Solution

The fourth proportional to 2,389.18, 3,583.16 and 849.82 is: 1,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.18 : 3,583.16 = 849.82 : x
  2. Step 2: Convert to fraction form
    2,389.18/3,583.16 = 849.82/x
  3. Step 3: Cross multiply
    2,389.18x = 3,583.16 × 849.82
  4. Step 4: Simplify right side
    2,389.18x = 3,045,025.24
  5. Step 5: Solve for x
    x = 3,045,025.24/2,389.18
  6. Step 6: Final answer
    x = 1,274.51

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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.