Home / 5,911.98-8,157.77-3,394.20

Finding the Fourth Proportional to 5,911.98, 8,157.77 and 3,394.20

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Solution

The fourth proportional to 5,911.98, 8,157.77 and 3,394.20 is: 4,683.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.98 : 8,157.77 = 3,394.20 : x
  2. Step 2: Convert to fraction form
    5,911.98/8,157.77 = 3,394.20/x
  3. Step 3: Cross multiply
    5,911.98x = 8,157.77 × 3,394.20
  4. Step 4: Simplify right side
    5,911.98x = 27,689,085.96
  5. Step 5: Solve for x
    x = 27,689,085.96/5,911.98
  6. Step 6: Final answer
    x = 4,683.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.