Home / 5,128.04-7,078.92-3,265.04

Finding the Fourth Proportional to 5,128.04, 7,078.92 and 3,265.04

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Solution

The fourth proportional to 5,128.04, 7,078.92 and 3,265.04 is: 4,507.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.04 : 7,078.92 = 3,265.04 : x
  2. Step 2: Convert to fraction form
    5,128.04/7,078.92 = 3,265.04/x
  3. Step 3: Cross multiply
    5,128.04x = 7,078.92 × 3,265.04
  4. Step 4: Simplify right side
    5,128.04x = 23,112,956.96
  5. Step 5: Solve for x
    x = 23,112,956.96/5,128.04
  6. Step 6: Final answer
    x = 4,507.17

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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.