Home / 7,640.48-11,451.16-4,130.36

Finding the Fourth Proportional to 7,640.48, 11,451.16 and 4,130.36

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Solution

The fourth proportional to 7,640.48, 11,451.16 and 4,130.36 is: 6,190.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.48 : 11,451.16 = 4,130.36 : x
  2. Step 2: Convert to fraction form
    7,640.48/11,451.16 = 4,130.36/x
  3. Step 3: Cross multiply
    7,640.48x = 11,451.16 × 4,130.36
  4. Step 4: Simplify right side
    7,640.48x = 47,297,413.22
  5. Step 5: Solve for x
    x = 47,297,413.22/7,640.48
  6. Step 6: Final answer
    x = 6,190.37

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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.