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Finding the Fourth Proportional to 1,809.10, 2,713.29 and 510.25

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Solution

The fourth proportional to 1,809.10, 2,713.29 and 510.25 is: 765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.10 : 2,713.29 = 510.25 : x
  2. Step 2: Convert to fraction form
    1,809.10/2,713.29 = 510.25/x
  3. Step 3: Cross multiply
    1,809.10x = 2,713.29 × 510.25
  4. Step 4: Simplify right side
    1,809.10x = 1,384,456.22
  5. Step 5: Solve for x
    x = 1,384,456.22/1,809.10
  6. Step 6: Final answer
    x = 765.27

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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.