Home / 3,576.51-4,934.78-2,160.43

Finding the Fourth Proportional to 3,576.51, 4,934.78 and 2,160.43

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Solution

The fourth proportional to 3,576.51, 4,934.78 and 2,160.43 is: 2,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.51 : 4,934.78 = 2,160.43 : x
  2. Step 2: Convert to fraction form
    3,576.51/4,934.78 = 2,160.43/x
  3. Step 3: Cross multiply
    3,576.51x = 4,934.78 × 2,160.43
  4. Step 4: Simplify right side
    3,576.51x = 10,661,246.76
  5. Step 5: Solve for x
    x = 10,661,246.76/3,576.51
  6. Step 6: Final answer
    x = 2,980.91

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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.