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Finding the Fourth Proportional to 1,779.57, 2,668.75 and 901.73

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Solution

The fourth proportional to 1,779.57, 2,668.75 and 901.73 is: 1,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.57 : 2,668.75 = 901.73 : x
  2. Step 2: Convert to fraction form
    1,779.57/2,668.75 = 901.73/x
  3. Step 3: Cross multiply
    1,779.57x = 2,668.75 × 901.73
  4. Step 4: Simplify right side
    1,779.57x = 2,406,496.36
  5. Step 5: Solve for x
    x = 2,406,496.36/1,779.57
  6. Step 6: Final answer
    x = 1,352.29

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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.