Home / 2,007.65-2,772.23-1,377.95

Finding the Fourth Proportional to 2,007.65, 2,772.23 and 1,377.95

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Solution

The fourth proportional to 2,007.65, 2,772.23 and 1,377.95 is: 1,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.65 : 2,772.23 = 1,377.95 : x
  2. Step 2: Convert to fraction form
    2,007.65/2,772.23 = 1,377.95/x
  3. Step 3: Cross multiply
    2,007.65x = 2,772.23 × 1,377.95
  4. Step 4: Simplify right side
    2,007.65x = 3,819,973.58
  5. Step 5: Solve for x
    x = 3,819,973.58/2,007.65
  6. Step 6: Final answer
    x = 1,902.71

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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.