Home / 3,280.14-4,908.87-2,688.30

Finding the Fourth Proportional to 3,280.14, 4,908.87 and 2,688.30

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Solution

The fourth proportional to 3,280.14, 4,908.87 and 2,688.30 is: 4,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.14 : 4,908.87 = 2,688.30 : x
  2. Step 2: Convert to fraction form
    3,280.14/4,908.87 = 2,688.30/x
  3. Step 3: Cross multiply
    3,280.14x = 4,908.87 × 2,688.30
  4. Step 4: Simplify right side
    3,280.14x = 13,196,515.22
  5. Step 5: Solve for x
    x = 13,196,515.22/3,280.14
  6. Step 6: Final answer
    x = 4,023.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.