Home / 3,409.08-4,703.39-2,778.52

Finding the Fourth Proportional to 3,409.08, 4,703.39 and 2,778.52

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Solution

The fourth proportional to 3,409.08, 4,703.39 and 2,778.52 is: 3,833.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.08 : 4,703.39 = 2,778.52 : x
  2. Step 2: Convert to fraction form
    3,409.08/4,703.39 = 2,778.52/x
  3. Step 3: Cross multiply
    3,409.08x = 4,703.39 × 2,778.52
  4. Step 4: Simplify right side
    3,409.08x = 13,068,439.67
  5. Step 5: Solve for x
    x = 13,068,439.67/3,409.08
  6. Step 6: Final answer
    x = 3,833.43

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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.