Home / 3,869.46-5,338.94-2,612.84

Finding the Fourth Proportional to 3,869.46, 5,338.94 and 2,612.84

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Solution

The fourth proportional to 3,869.46, 5,338.94 and 2,612.84 is: 3,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.46 : 5,338.94 = 2,612.84 : x
  2. Step 2: Convert to fraction form
    3,869.46/5,338.94 = 2,612.84/x
  3. Step 3: Cross multiply
    3,869.46x = 5,338.94 × 2,612.84
  4. Step 4: Simplify right side
    3,869.46x = 13,949,756.23
  5. Step 5: Solve for x
    x = 13,949,756.23/3,869.46
  6. Step 6: Final answer
    x = 3,605.09

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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.