Home / 6,855.42-9,460.38-3,871.26

Finding the Fourth Proportional to 6,855.42, 9,460.38 and 3,871.26

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Solution

The fourth proportional to 6,855.42, 9,460.38 and 3,871.26 is: 5,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.42 : 9,460.38 = 3,871.26 : x
  2. Step 2: Convert to fraction form
    6,855.42/9,460.38 = 3,871.26/x
  3. Step 3: Cross multiply
    6,855.42x = 9,460.38 × 3,871.26
  4. Step 4: Simplify right side
    6,855.42x = 36,623,590.68
  5. Step 5: Solve for x
    x = 36,623,590.68/6,855.42
  6. Step 6: Final answer
    x = 5,342.28

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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.