Home / 3,280.32-4,525.74-2,690.64

Finding the Fourth Proportional to 3,280.32, 4,525.74 and 2,690.64

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Solution

The fourth proportional to 3,280.32, 4,525.74 and 2,690.64 is: 3,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.32 : 4,525.74 = 2,690.64 : x
  2. Step 2: Convert to fraction form
    3,280.32/4,525.74 = 2,690.64/x
  3. Step 3: Cross multiply
    3,280.32x = 4,525.74 × 2,690.64
  4. Step 4: Simplify right side
    3,280.32x = 12,177,137.07
  5. Step 5: Solve for x
    x = 12,177,137.07/3,280.32
  6. Step 6: Final answer
    x = 3,712.18

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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.