Home / 6,280.75-8,667.84-3,486.25

Finding the Fourth Proportional to 6,280.75, 8,667.84 and 3,486.25

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Solution

The fourth proportional to 6,280.75, 8,667.84 and 3,486.25 is: 4,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.75 : 8,667.84 = 3,486.25 : x
  2. Step 2: Convert to fraction form
    6,280.75/8,667.84 = 3,486.25/x
  3. Step 3: Cross multiply
    6,280.75x = 8,667.84 × 3,486.25
  4. Step 4: Simplify right side
    6,280.75x = 30,218,257.20
  5. Step 5: Solve for x
    x = 30,218,257.20/6,280.75
  6. Step 6: Final answer
    x = 4,811.25

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Half scale
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Double scale
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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.