Home / 3,830.36-5,285.72-2,340.77

Finding the Fourth Proportional to 3,830.36, 5,285.72 and 2,340.77

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Solution

The fourth proportional to 3,830.36, 5,285.72 and 2,340.77 is: 3,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.36 : 5,285.72 = 2,340.77 : x
  2. Step 2: Convert to fraction form
    3,830.36/5,285.72 = 2,340.77/x
  3. Step 3: Cross multiply
    3,830.36x = 5,285.72 × 2,340.77
  4. Step 4: Simplify right side
    3,830.36x = 12,372,634.23
  5. Step 5: Solve for x
    x = 12,372,634.23/3,830.36
  6. Step 6: Final answer
    x = 3,230.15

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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.