Home / 3,710.70-5,121.09-2,665.26

Finding the Fourth Proportional to 3,710.70, 5,121.09 and 2,665.26

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Solution

The fourth proportional to 3,710.70, 5,121.09 and 2,665.26 is: 3,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.70 : 5,121.09 = 2,665.26 : x
  2. Step 2: Convert to fraction form
    3,710.70/5,121.09 = 2,665.26/x
  3. Step 3: Cross multiply
    3,710.70x = 5,121.09 × 2,665.26
  4. Step 4: Simplify right side
    3,710.70x = 13,649,036.33
  5. Step 5: Solve for x
    x = 13,649,036.33/3,710.70
  6. Step 6: Final answer
    x = 3,678.29

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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.