Home / 4,970.20-7,450.80-2,745.64

Finding the Fourth Proportional to 4,970.20, 7,450.80 and 2,745.64

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Solution

The fourth proportional to 4,970.20, 7,450.80 and 2,745.64 is: 4,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.20 : 7,450.80 = 2,745.64 : x
  2. Step 2: Convert to fraction form
    4,970.20/7,450.80 = 2,745.64/x
  3. Step 3: Cross multiply
    4,970.20x = 7,450.80 × 2,745.64
  4. Step 4: Simplify right side
    4,970.20x = 20,457,214.51
  5. Step 5: Solve for x
    x = 20,457,214.51/4,970.20
  6. Step 6: Final answer
    x = 4,115.97

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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.