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Finding the Fourth Proportional to 3,605.67, 4,974.69 and 2,847.06

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Solution

The fourth proportional to 3,605.67, 4,974.69 and 2,847.06 is: 3,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.67 : 4,974.69 = 2,847.06 : x
  2. Step 2: Convert to fraction form
    3,605.67/4,974.69 = 2,847.06/x
  3. Step 3: Cross multiply
    3,605.67x = 4,974.69 × 2,847.06
  4. Step 4: Simplify right side
    3,605.67x = 14,163,240.91
  5. Step 5: Solve for x
    x = 14,163,240.91/3,605.67
  6. Step 6: Final answer
    x = 3,928.05

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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.