Home / 3,280.60-4,920.90-2,848.60

Finding the Fourth Proportional to 3,280.60, 4,920.90 and 2,848.60

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Solution

The fourth proportional to 3,280.60, 4,920.90 and 2,848.60 is: 4,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.60 : 4,920.90 = 2,848.60 : x
  2. Step 2: Convert to fraction form
    3,280.60/4,920.90 = 2,848.60/x
  3. Step 3: Cross multiply
    3,280.60x = 4,920.90 × 2,848.60
  4. Step 4: Simplify right side
    3,280.60x = 14,017,675.74
  5. Step 5: Solve for x
    x = 14,017,675.74/3,280.60
  6. Step 6: Final answer
    x = 4,272.90

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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.