Home / 5,628.51-7,769.43-3,390.48

Finding the Fourth Proportional to 5,628.51, 7,769.43 and 3,390.48

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Solution

The fourth proportional to 5,628.51, 7,769.43 and 3,390.48 is: 4,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.51 : 7,769.43 = 3,390.48 : x
  2. Step 2: Convert to fraction form
    5,628.51/7,769.43 = 3,390.48/x
  3. Step 3: Cross multiply
    5,628.51x = 7,769.43 × 3,390.48
  4. Step 4: Simplify right side
    5,628.51x = 26,342,097.03
  5. Step 5: Solve for x
    x = 26,342,097.03/5,628.51
  6. Step 6: Final answer
    x = 4,680.12

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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.