Home / 4,720.60-7,072.80-3,076.30

Finding the Fourth Proportional to 4,720.60, 7,072.80 and 3,076.30

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Solution

The fourth proportional to 4,720.60, 7,072.80 and 3,076.30 is: 4,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.60 : 7,072.80 = 3,076.30 : x
  2. Step 2: Convert to fraction form
    4,720.60/7,072.80 = 3,076.30/x
  3. Step 3: Cross multiply
    4,720.60x = 7,072.80 × 3,076.30
  4. Step 4: Simplify right side
    4,720.60x = 21,758,054.64
  5. Step 5: Solve for x
    x = 21,758,054.64/4,720.60
  6. Step 6: Final answer
    x = 4,609.17

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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.