Home / 5,558.20-7,670.30-3,321.38

Finding the Fourth Proportional to 5,558.20, 7,670.30 and 3,321.38

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Solution

The fourth proportional to 5,558.20, 7,670.30 and 3,321.38 is: 4,583.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.20 : 7,670.30 = 3,321.38 : x
  2. Step 2: Convert to fraction form
    5,558.20/7,670.30 = 3,321.38/x
  3. Step 3: Cross multiply
    5,558.20x = 7,670.30 × 3,321.38
  4. Step 4: Simplify right side
    5,558.20x = 25,476,008.49
  5. Step 5: Solve for x
    x = 25,476,008.49/5,558.20
  6. Step 6: Final answer
    x = 4,583.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.