Home / 3,400.36-5,100.52-1,918.91

Finding the Fourth Proportional to 3,400.36, 5,100.52 and 1,918.91

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Solution

The fourth proportional to 3,400.36, 5,100.52 and 1,918.91 is: 2,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.36 : 5,100.52 = 1,918.91 : x
  2. Step 2: Convert to fraction form
    3,400.36/5,100.52 = 1,918.91/x
  3. Step 3: Cross multiply
    3,400.36x = 5,100.52 × 1,918.91
  4. Step 4: Simplify right side
    3,400.36x = 9,787,418.13
  5. Step 5: Solve for x
    x = 9,787,418.13/3,400.36
  6. Step 6: Final answer
    x = 2,878.35

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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.