Home / 3,317.20-4,967.70-2,215.60

Finding the Fourth Proportional to 3,317.20, 4,967.70 and 2,215.60

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Solution

The fourth proportional to 3,317.20, 4,967.70 and 2,215.60 is: 3,317.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.20 : 4,967.70 = 2,215.60 : x
  2. Step 2: Convert to fraction form
    3,317.20/4,967.70 = 2,215.60/x
  3. Step 3: Cross multiply
    3,317.20x = 4,967.70 × 2,215.60
  4. Step 4: Simplify right side
    3,317.20x = 11,006,436.12
  5. Step 5: Solve for x
    x = 11,006,436.12/3,317.20
  6. Step 6: Final answer
    x = 3,317.99

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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.