Home / 3,556.72-4,908.78-2,565.28

Finding the Fourth Proportional to 3,556.72, 4,908.78 and 2,565.28

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Solution

The fourth proportional to 3,556.72, 4,908.78 and 2,565.28 is: 3,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.72 : 4,908.78 = 2,565.28 : x
  2. Step 2: Convert to fraction form
    3,556.72/4,908.78 = 2,565.28/x
  3. Step 3: Cross multiply
    3,556.72x = 4,908.78 × 2,565.28
  4. Step 4: Simplify right side
    3,556.72x = 12,592,395.16
  5. Step 5: Solve for x
    x = 12,592,395.16/3,556.72
  6. Step 6: Final answer
    x = 3,540.45

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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.