Home / 4,272.84-6,405.30-2,188.25

Finding the Fourth Proportional to 4,272.84, 6,405.30 and 2,188.25

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Solution

The fourth proportional to 4,272.84, 6,405.30 and 2,188.25 is: 3,280.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.84 : 6,405.30 = 2,188.25 : x
  2. Step 2: Convert to fraction form
    4,272.84/6,405.30 = 2,188.25/x
  3. Step 3: Cross multiply
    4,272.84x = 6,405.30 × 2,188.25
  4. Step 4: Simplify right side
    4,272.84x = 14,016,413.74
  5. Step 5: Solve for x
    x = 14,016,413.74/4,272.84
  6. Step 6: Final answer
    x = 3,280.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.