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Finding the Fourth Proportional to 1,977.04, 2,967.09 and 745.57

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Solution

The fourth proportional to 1,977.04, 2,967.09 and 745.57 is: 1,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.04 : 2,967.09 = 745.57 : x
  2. Step 2: Convert to fraction form
    1,977.04/2,967.09 = 745.57/x
  3. Step 3: Cross multiply
    1,977.04x = 2,967.09 × 745.57
  4. Step 4: Simplify right side
    1,977.04x = 2,212,173.29
  5. Step 5: Solve for x
    x = 2,212,173.29/1,977.04
  6. Step 6: Final answer
    x = 1,118.93

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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.