Home / 2,774.03-4,161.77-1,387.31

Finding the Fourth Proportional to 2,774.03, 4,161.77 and 1,387.31

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Solution

The fourth proportional to 2,774.03, 4,161.77 and 1,387.31 is: 2,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.03 : 4,161.77 = 1,387.31 : x
  2. Step 2: Convert to fraction form
    2,774.03/4,161.77 = 1,387.31/x
  3. Step 3: Cross multiply
    2,774.03x = 4,161.77 × 1,387.31
  4. Step 4: Simplify right side
    2,774.03x = 5,773,658.20
  5. Step 5: Solve for x
    x = 5,773,658.20/2,774.03
  6. Step 6: Final answer
    x = 2,081.33

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1.5x scale

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.