Home / 3,977.07-5,966.01-1,379.40

Finding the Fourth Proportional to 3,977.07, 5,966.01 and 1,379.40

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Solution

The fourth proportional to 3,977.07, 5,966.01 and 1,379.40 is: 2,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.07 : 5,966.01 = 1,379.40 : x
  2. Step 2: Convert to fraction form
    3,977.07/5,966.01 = 1,379.40/x
  3. Step 3: Cross multiply
    3,977.07x = 5,966.01 × 1,379.40
  4. Step 4: Simplify right side
    3,977.07x = 8,229,514.19
  5. Step 5: Solve for x
    x = 8,229,514.19/3,977.07
  6. Step 6: Final answer
    x = 2,069.24

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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.