Home / 3,213.66-4,455.69-3,038.70

Finding the Fourth Proportional to 3,213.66, 4,455.69 and 3,038.70

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Solution

The fourth proportional to 3,213.66, 4,455.69 and 3,038.70 is: 4,213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.66 : 4,455.69 = 3,038.70 : x
  2. Step 2: Convert to fraction form
    3,213.66/4,455.69 = 3,038.70/x
  3. Step 3: Cross multiply
    3,213.66x = 4,455.69 × 3,038.70
  4. Step 4: Simplify right side
    3,213.66x = 13,539,505.20
  5. Step 5: Solve for x
    x = 13,539,505.20/3,213.66
  6. Step 6: Final answer
    x = 4,213.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.