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Finding the Fourth Proportional to 7,855.85, 10,841.07 and 4,319.06

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Solution

The fourth proportional to 7,855.85, 10,841.07 and 4,319.06 is: 5,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.85 : 10,841.07 = 4,319.06 : x
  2. Step 2: Convert to fraction form
    7,855.85/10,841.07 = 4,319.06/x
  3. Step 3: Cross multiply
    7,855.85x = 10,841.07 × 4,319.06
  4. Step 4: Simplify right side
    7,855.85x = 46,823,231.79
  5. Step 5: Solve for x
    x = 46,823,231.79/7,855.85
  6. Step 6: Final answer
    x = 5,960.30

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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.