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Finding the Fourth Proportional to 1,820.30, 2,730.39 and 504.13

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Solution

The fourth proportional to 1,820.30, 2,730.39 and 504.13 is: 756.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.30 : 2,730.39 = 504.13 : x
  2. Step 2: Convert to fraction form
    1,820.30/2,730.39 = 504.13/x
  3. Step 3: Cross multiply
    1,820.30x = 2,730.39 × 504.13
  4. Step 4: Simplify right side
    1,820.30x = 1,376,468.99
  5. Step 5: Solve for x
    x = 1,376,468.99/1,820.30
  6. Step 6: Final answer
    x = 756.18

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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.