Home / 3,428.63-4,731.24-1,936.71

Finding the Fourth Proportional to 3,428.63, 4,731.24 and 1,936.71

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Solution

The fourth proportional to 3,428.63, 4,731.24 and 1,936.71 is: 2,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.63 : 4,731.24 = 1,936.71 : x
  2. Step 2: Convert to fraction form
    3,428.63/4,731.24 = 1,936.71/x
  3. Step 3: Cross multiply
    3,428.63x = 4,731.24 × 1,936.71
  4. Step 4: Simplify right side
    3,428.63x = 9,163,047.08
  5. Step 5: Solve for x
    x = 9,163,047.08/3,428.63
  6. Step 6: Final answer
    x = 2,672.51

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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.