Home / 4,839.12-7,245.72-3,977.28

Finding the Fourth Proportional to 4,839.12, 7,245.72 and 3,977.28

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Solution

The fourth proportional to 4,839.12, 7,245.72 and 3,977.28 is: 5,955.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.12 : 7,245.72 = 3,977.28 : x
  2. Step 2: Convert to fraction form
    4,839.12/7,245.72 = 3,977.28/x
  3. Step 3: Cross multiply
    4,839.12x = 7,245.72 × 3,977.28
  4. Step 4: Simplify right side
    4,839.12x = 28,818,257.24
  5. Step 5: Solve for x
    x = 28,818,257.24/4,839.12
  6. Step 6: Final answer
    x = 5,955.27

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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.