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Finding the Fourth Proportional to 1,809.03, 2,495.30 and 1,512.03

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Solution

The fourth proportional to 1,809.03, 2,495.30 and 1,512.03 is: 2,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.03 : 2,495.30 = 1,512.03 : x
  2. Step 2: Convert to fraction form
    1,809.03/2,495.30 = 1,512.03/x
  3. Step 3: Cross multiply
    1,809.03x = 2,495.30 × 1,512.03
  4. Step 4: Simplify right side
    1,809.03x = 3,772,960.90
  5. Step 5: Solve for x
    x = 3,772,960.90/1,809.03
  6. Step 6: Final answer
    x = 2,085.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.