Home / 3,503.80-4,832.82-2,840.68

Finding the Fourth Proportional to 3,503.80, 4,832.82 and 2,840.68

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Solution

The fourth proportional to 3,503.80, 4,832.82 and 2,840.68 is: 3,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.80 : 4,832.82 = 2,840.68 : x
  2. Step 2: Convert to fraction form
    3,503.80/4,832.82 = 2,840.68/x
  3. Step 3: Cross multiply
    3,503.80x = 4,832.82 × 2,840.68
  4. Step 4: Simplify right side
    3,503.80x = 13,728,495.12
  5. Step 5: Solve for x
    x = 13,728,495.12/3,503.80
  6. Step 6: Final answer
    x = 3,918.17

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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.