Home / 3,715.96-5,128.08-2,224.96

Finding the Fourth Proportional to 3,715.96, 5,128.08 and 2,224.96

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Solution

The fourth proportional to 3,715.96, 5,128.08 and 2,224.96 is: 3,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.96 : 5,128.08 = 2,224.96 : x
  2. Step 2: Convert to fraction form
    3,715.96/5,128.08 = 2,224.96/x
  3. Step 3: Cross multiply
    3,715.96x = 5,128.08 × 2,224.96
  4. Step 4: Simplify right side
    3,715.96x = 11,409,772.88
  5. Step 5: Solve for x
    x = 11,409,772.88/3,715.96
  6. Step 6: Final answer
    x = 3,070.48

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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.