Home / 7,620.24-11,430.81-2,940.28

Finding the Fourth Proportional to 7,620.24, 11,430.81 and 2,940.28

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Solution

The fourth proportional to 7,620.24, 11,430.81 and 2,940.28 is: 4,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.24 : 11,430.81 = 2,940.28 : x
  2. Step 2: Convert to fraction form
    7,620.24/11,430.81 = 2,940.28/x
  3. Step 3: Cross multiply
    7,620.24x = 11,430.81 × 2,940.28
  4. Step 4: Simplify right side
    7,620.24x = 33,609,753.45
  5. Step 5: Solve for x
    x = 33,609,753.45/7,620.24
  6. Step 6: Final answer
    x = 4,410.59

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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.