Home / 3,428.65-4,731.37-1,936.72

Finding the Fourth Proportional to 3,428.65, 4,731.37 and 1,936.72

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Solution

The fourth proportional to 3,428.65, 4,731.37 and 1,936.72 is: 2,672.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.65 : 4,731.37 = 1,936.72 : x
  2. Step 2: Convert to fraction form
    3,428.65/4,731.37 = 1,936.72/x
  3. Step 3: Cross multiply
    3,428.65x = 4,731.37 × 1,936.72
  4. Step 4: Simplify right side
    3,428.65x = 9,163,338.91
  5. Step 5: Solve for x
    x = 9,163,338.91/3,428.65
  6. Step 6: Final answer
    x = 2,672.58

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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.