Home / 3,904.96-5,388.16-2,225.60

Finding the Fourth Proportional to 3,904.96, 5,388.16 and 2,225.60

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Solution

The fourth proportional to 3,904.96, 5,388.16 and 2,225.60 is: 3,070.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.96 : 5,388.16 = 2,225.60 : x
  2. Step 2: Convert to fraction form
    3,904.96/5,388.16 = 2,225.60/x
  3. Step 3: Cross multiply
    3,904.96x = 5,388.16 × 2,225.60
  4. Step 4: Simplify right side
    3,904.96x = 11,991,888.90
  5. Step 5: Solve for x
    x = 11,991,888.90/3,904.96
  6. Step 6: Final answer
    x = 3,070.94

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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.