Home / 3,428.04-4,730.34-1,936.12

Finding the Fourth Proportional to 3,428.04, 4,730.34 and 1,936.12

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Solution

The fourth proportional to 3,428.04, 4,730.34 and 1,936.12 is: 2,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.04 : 4,730.34 = 1,936.12 : x
  2. Step 2: Convert to fraction form
    3,428.04/4,730.34 = 1,936.12/x
  3. Step 3: Cross multiply
    3,428.04x = 4,730.34 × 1,936.12
  4. Step 4: Simplify right side
    3,428.04x = 9,158,505.88
  5. Step 5: Solve for x
    x = 9,158,505.88/3,428.04
  6. Step 6: Final answer
    x = 2,671.64

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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.