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Finding the Fourth Proportional to 6,280.36, 8,667.36 and 3,485.88

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Solution

The fourth proportional to 6,280.36, 8,667.36 and 3,485.88 is: 4,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.36 : 8,667.36 = 3,485.88 : x
  2. Step 2: Convert to fraction form
    6,280.36/8,667.36 = 3,485.88/x
  3. Step 3: Cross multiply
    6,280.36x = 8,667.36 × 3,485.88
  4. Step 4: Simplify right side
    6,280.36x = 30,213,376.88
  5. Step 5: Solve for x
    x = 30,213,376.88/6,280.36
  6. Step 6: Final answer
    x = 4,810.77

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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.