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Finding the Fourth Proportional to 3,395.67, 4,686.05 and 2,069.15

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Solution

The fourth proportional to 3,395.67, 4,686.05 and 2,069.15 is: 2,855.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.67 : 4,686.05 = 2,069.15 : x
  2. Step 2: Convert to fraction form
    3,395.67/4,686.05 = 2,069.15/x
  3. Step 3: Cross multiply
    3,395.67x = 4,686.05 × 2,069.15
  4. Step 4: Simplify right side
    3,395.67x = 9,696,122.10
  5. Step 5: Solve for x
    x = 9,696,122.10/3,395.67
  6. Step 6: Final answer
    x = 2,855.44

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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.