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Finding the Fourth Proportional to 3,779.97, 5,670.02 and 1,314.87

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Solution

The fourth proportional to 3,779.97, 5,670.02 and 1,314.87 is: 1,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.97 : 5,670.02 = 1,314.87 : x
  2. Step 2: Convert to fraction form
    3,779.97/5,670.02 = 1,314.87/x
  3. Step 3: Cross multiply
    3,779.97x = 5,670.02 × 1,314.87
  4. Step 4: Simplify right side
    3,779.97x = 7,455,339.20
  5. Step 5: Solve for x
    x = 7,455,339.20/3,779.97
  6. Step 6: Final answer
    x = 1,972.33

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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.