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Finding the Fourth Proportional to 3,790.16, 5,228.16 and 2,795.12

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Solution

The fourth proportional to 3,790.16, 5,228.16 and 2,795.12 is: 3,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.16 : 5,228.16 = 2,795.12 : x
  2. Step 2: Convert to fraction form
    3,790.16/5,228.16 = 2,795.12/x
  3. Step 3: Cross multiply
    3,790.16x = 5,228.16 × 2,795.12
  4. Step 4: Simplify right side
    3,790.16x = 14,613,334.58
  5. Step 5: Solve for x
    x = 14,613,334.58/3,790.16
  6. Step 6: Final answer
    x = 3,855.60

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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.