Home / 7,817.33-10,787.85-4,280.54

Finding the Fourth Proportional to 7,817.33, 10,787.85 and 4,280.54

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Solution

The fourth proportional to 7,817.33, 10,787.85 and 4,280.54 is: 5,907.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.33 : 10,787.85 = 4,280.54 : x
  2. Step 2: Convert to fraction form
    7,817.33/10,787.85 = 4,280.54/x
  3. Step 3: Cross multiply
    7,817.33x = 10,787.85 × 4,280.54
  4. Step 4: Simplify right side
    7,817.33x = 46,177,769.50
  5. Step 5: Solve for x
    x = 46,177,769.50/7,817.33
  6. Step 6: Final answer
    x = 5,907.10

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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.