Home / 3,240.10-4,468.58-2,738.40

Finding the Fourth Proportional to 3,240.10, 4,468.58 and 2,738.40

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Solution

The fourth proportional to 3,240.10, 4,468.58 and 2,738.40 is: 3,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.10 : 4,468.58 = 2,738.40 : x
  2. Step 2: Convert to fraction form
    3,240.10/4,468.58 = 2,738.40/x
  3. Step 3: Cross multiply
    3,240.10x = 4,468.58 × 2,738.40
  4. Step 4: Simplify right side
    3,240.10x = 12,236,759.47
  5. Step 5: Solve for x
    x = 12,236,759.47/3,240.10
  6. Step 6: Final answer
    x = 3,776.66

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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.