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Finding the Fourth Proportional to 1,830.37, 2,745.13 and 514.22

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Solution

The fourth proportional to 1,830.37, 2,745.13 and 514.22 is: 771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.37 : 2,745.13 = 514.22 : x
  2. Step 2: Convert to fraction form
    1,830.37/2,745.13 = 514.22/x
  3. Step 3: Cross multiply
    1,830.37x = 2,745.13 × 514.22
  4. Step 4: Simplify right side
    1,830.37x = 1,411,598.18
  5. Step 5: Solve for x
    x = 1,411,598.18/1,830.37
  6. Step 6: Final answer
    x = 771.21

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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.