Home / 3,576.65-4,935.77-2,179.40

Finding the Fourth Proportional to 3,576.65, 4,935.77 and 2,179.40

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Solution

The fourth proportional to 3,576.65, 4,935.77 and 2,179.40 is: 3,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.65 : 4,935.77 = 2,179.40 : x
  2. Step 2: Convert to fraction form
    3,576.65/4,935.77 = 2,179.40/x
  3. Step 3: Cross multiply
    3,576.65x = 4,935.77 × 2,179.40
  4. Step 4: Simplify right side
    3,576.65x = 10,756,981.56
  5. Step 5: Solve for x
    x = 10,756,981.56/3,576.65
  6. Step 6: Final answer
    x = 3,007.56

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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.