Home / 5,087.41-7,020.37-2,787.74

Finding the Fourth Proportional to 5,087.41, 7,020.37 and 2,787.74

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Solution

The fourth proportional to 5,087.41, 7,020.37 and 2,787.74 is: 3,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.41 : 7,020.37 = 2,787.74 : x
  2. Step 2: Convert to fraction form
    5,087.41/7,020.37 = 2,787.74/x
  3. Step 3: Cross multiply
    5,087.41x = 7,020.37 × 2,787.74
  4. Step 4: Simplify right side
    5,087.41x = 19,570,980.72
  5. Step 5: Solve for x
    x = 19,570,980.72/5,087.41
  6. Step 6: Final answer
    x = 3,846.95

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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.