Home / 4,783.31-7,164.56-2,928.80

Finding the Fourth Proportional to 4,783.31, 7,164.56 and 2,928.80

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Solution

The fourth proportional to 4,783.31, 7,164.56 and 2,928.80 is: 4,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,783.31 : 7,164.56 = 2,928.80 : x
  2. Step 2: Convert to fraction form
    4,783.31/7,164.56 = 2,928.80/x
  3. Step 3: Cross multiply
    4,783.31x = 7,164.56 × 2,928.80
  4. Step 4: Simplify right side
    4,783.31x = 20,983,548.68
  5. Step 5: Solve for x
    x = 20,983,548.68/4,783.31
  6. Step 6: Final answer
    x = 4,386.83

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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.