Home / 7,817.36-10,787.92-4,280.56

Finding the Fourth Proportional to 7,817.36, 10,787.92 and 4,280.56

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Solution

The fourth proportional to 7,817.36, 10,787.92 and 4,280.56 is: 5,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.36 : 10,787.92 = 4,280.56 : x
  2. Step 2: Convert to fraction form
    7,817.36/10,787.92 = 4,280.56/x
  3. Step 3: Cross multiply
    7,817.36x = 10,787.92 × 4,280.56
  4. Step 4: Simplify right side
    7,817.36x = 46,178,338.84
  5. Step 5: Solve for x
    x = 46,178,338.84/7,817.36
  6. Step 6: Final answer
    x = 5,907.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.