Home / 3,608.04-4,978.56-2,190.99

Finding the Fourth Proportional to 3,608.04, 4,978.56 and 2,190.99

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Solution

The fourth proportional to 3,608.04, 4,978.56 and 2,190.99 is: 3,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.04 : 4,978.56 = 2,190.99 : x
  2. Step 2: Convert to fraction form
    3,608.04/4,978.56 = 2,190.99/x
  3. Step 3: Cross multiply
    3,608.04x = 4,978.56 × 2,190.99
  4. Step 4: Simplify right side
    3,608.04x = 10,907,953.19
  5. Step 5: Solve for x
    x = 10,907,953.19/3,608.04
  6. Step 6: Final answer
    x = 3,023.24

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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.