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Finding the Fourth Proportional to 1,798.58, 2,481.99 and 1,012.61

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Solution

The fourth proportional to 1,798.58, 2,481.99 and 1,012.61 is: 1,397.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.58 : 2,481.99 = 1,012.61 : x
  2. Step 2: Convert to fraction form
    1,798.58/2,481.99 = 1,012.61/x
  3. Step 3: Cross multiply
    1,798.58x = 2,481.99 × 1,012.61
  4. Step 4: Simplify right side
    1,798.58x = 2,513,271.69
  5. Step 5: Solve for x
    x = 2,513,271.69/1,798.58
  6. Step 6: Final answer
    x = 1,397.37

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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.