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Finding the Fourth Proportional to 6,855.93, 9,460.67 and 3,871.35

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Solution

The fourth proportional to 6,855.93, 9,460.67 and 3,871.35 is: 5,342.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.93 : 9,460.67 = 3,871.35 : x
  2. Step 2: Convert to fraction form
    6,855.93/9,460.67 = 3,871.35/x
  3. Step 3: Cross multiply
    6,855.93x = 9,460.67 × 3,871.35
  4. Step 4: Simplify right side
    6,855.93x = 36,625,545.45
  5. Step 5: Solve for x
    x = 36,625,545.45/6,855.93
  6. Step 6: Final answer
    x = 5,342.17

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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.