Home / 3,430.75-4,733.94-1,918.33

Finding the Fourth Proportional to 3,430.75, 4,733.94 and 1,918.33

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Solution

The fourth proportional to 3,430.75, 4,733.94 and 1,918.33 is: 2,647.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.75 : 4,733.94 = 1,918.33 : x
  2. Step 2: Convert to fraction form
    3,430.75/4,733.94 = 1,918.33/x
  3. Step 3: Cross multiply
    3,430.75x = 4,733.94 × 1,918.33
  4. Step 4: Simplify right side
    3,430.75x = 9,081,259.12
  5. Step 5: Solve for x
    x = 9,081,259.12/3,430.75
  6. Step 6: Final answer
    x = 2,647.02

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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.