Home / 3,411.40-5,115.42-1,102.60

Finding the Fourth Proportional to 3,411.40, 5,115.42 and 1,102.60

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Solution

The fourth proportional to 3,411.40, 5,115.42 and 1,102.60 is: 1,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.40 : 5,115.42 = 1,102.60 : x
  2. Step 2: Convert to fraction form
    3,411.40/5,115.42 = 1,102.60/x
  3. Step 3: Cross multiply
    3,411.40x = 5,115.42 × 1,102.60
  4. Step 4: Simplify right side
    3,411.40x = 5,640,262.09
  5. Step 5: Solve for x
    x = 5,640,262.09/3,411.40
  6. Step 6: Final answer
    x = 1,653.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.