Home / 4,868.38-6,720.60-3,189.88

Finding the Fourth Proportional to 4,868.38, 6,720.60 and 3,189.88

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Solution

The fourth proportional to 4,868.38, 6,720.60 and 3,189.88 is: 4,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.38 : 6,720.60 = 3,189.88 : x
  2. Step 2: Convert to fraction form
    4,868.38/6,720.60 = 3,189.88/x
  3. Step 3: Cross multiply
    4,868.38x = 6,720.60 × 3,189.88
  4. Step 4: Simplify right side
    4,868.38x = 21,437,907.53
  5. Step 5: Solve for x
    x = 21,437,907.53/4,868.38
  6. Step 6: Final answer
    x = 4,403.50

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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.