Home / 7,429.20-10,252.60-4,072.30

Finding the Fourth Proportional to 7,429.20, 10,252.60 and 4,072.30

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Solution

The fourth proportional to 7,429.20, 10,252.60 and 4,072.30 is: 5,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.20 : 10,252.60 = 4,072.30 : x
  2. Step 2: Convert to fraction form
    7,429.20/10,252.60 = 4,072.30/x
  3. Step 3: Cross multiply
    7,429.20x = 10,252.60 × 4,072.30
  4. Step 4: Simplify right side
    7,429.20x = 41,751,662.98
  5. Step 5: Solve for x
    x = 41,751,662.98/7,429.20
  6. Step 6: Final answer
    x = 5,619.94

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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.