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Finding the Fourth Proportional to 1,860.63, 2,790.82 and 544.34

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Solution

The fourth proportional to 1,860.63, 2,790.82 and 544.34 is: 816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.63 : 2,790.82 = 544.34 : x
  2. Step 2: Convert to fraction form
    1,860.63/2,790.82 = 544.34/x
  3. Step 3: Cross multiply
    1,860.63x = 2,790.82 × 544.34
  4. Step 4: Simplify right side
    1,860.63x = 1,519,139.64
  5. Step 5: Solve for x
    x = 1,519,139.64/1,860.63
  6. Step 6: Final answer
    x = 816.47

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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.