Home / 3,280.72-4,529.64-2,103.28

Finding the Fourth Proportional to 3,280.72, 4,529.64 and 2,103.28

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Solution

The fourth proportional to 3,280.72, 4,529.64 and 2,103.28 is: 2,903.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.72 : 4,529.64 = 2,103.28 : x
  2. Step 2: Convert to fraction form
    3,280.72/4,529.64 = 2,103.28/x
  3. Step 3: Cross multiply
    3,280.72x = 4,529.64 × 2,103.28
  4. Step 4: Simplify right side
    3,280.72x = 9,527,101.22
  5. Step 5: Solve for x
    x = 9,527,101.22/3,280.72
  6. Step 6: Final answer
    x = 2,903.97

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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.