Home / 3,336.90-5,005.35-3,315.30

Finding the Fourth Proportional to 3,336.90, 5,005.35 and 3,315.30

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Solution

The fourth proportional to 3,336.90, 5,005.35 and 3,315.30 is: 4,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,336.90 : 5,005.35 = 3,315.30 : x
  2. Step 2: Convert to fraction form
    3,336.90/5,005.35 = 3,315.30/x
  3. Step 3: Cross multiply
    3,336.90x = 5,005.35 × 3,315.30
  4. Step 4: Simplify right side
    3,336.90x = 16,594,236.86
  5. Step 5: Solve for x
    x = 16,594,236.86/3,336.90
  6. Step 6: Final answer
    x = 4,972.95

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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.