Home / 4,669.21-6,443.60-2,679.60

Finding the Fourth Proportional to 4,669.21, 6,443.60 and 2,679.60

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Solution

The fourth proportional to 4,669.21, 6,443.60 and 2,679.60 is: 3,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,669.21 : 6,443.60 = 2,679.60 : x
  2. Step 2: Convert to fraction form
    4,669.21/6,443.60 = 2,679.60/x
  3. Step 3: Cross multiply
    4,669.21x = 6,443.60 × 2,679.60
  4. Step 4: Simplify right side
    4,669.21x = 17,266,270.56
  5. Step 5: Solve for x
    x = 17,266,270.56/4,669.21
  6. Step 6: Final answer
    x = 3,697.90

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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.