Home / 7,570.45-11,355.75-2,640.09

Finding the Fourth Proportional to 7,570.45, 11,355.75 and 2,640.09

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Solution

The fourth proportional to 7,570.45, 11,355.75 and 2,640.09 is: 3,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.45 : 11,355.75 = 2,640.09 : x
  2. Step 2: Convert to fraction form
    7,570.45/11,355.75 = 2,640.09/x
  3. Step 3: Cross multiply
    7,570.45x = 11,355.75 × 2,640.09
  4. Step 4: Simplify right side
    7,570.45x = 29,980,202.02
  5. Step 5: Solve for x
    x = 29,980,202.02/7,570.45
  6. Step 6: Final answer
    x = 3,960.16

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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.