Home / 2,280.64-3,403.76-2,185.60

Finding the Fourth Proportional to 2,280.64, 3,403.76 and 2,185.60

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Solution

The fourth proportional to 2,280.64, 3,403.76 and 2,185.60 is: 3,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.64 : 3,403.76 = 2,185.60 : x
  2. Step 2: Convert to fraction form
    2,280.64/3,403.76 = 2,185.60/x
  3. Step 3: Cross multiply
    2,280.64x = 3,403.76 × 2,185.60
  4. Step 4: Simplify right side
    2,280.64x = 7,439,257.86
  5. Step 5: Solve for x
    x = 7,439,257.86/2,280.64
  6. Step 6: Final answer
    x = 3,261.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.