Home / 3,830.13-5,285.58-2,174.13

Finding the Fourth Proportional to 3,830.13, 5,285.58 and 2,174.13

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Solution

The fourth proportional to 3,830.13, 5,285.58 and 2,174.13 is: 3,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.13 : 5,285.58 = 2,174.13 : x
  2. Step 2: Convert to fraction form
    3,830.13/5,285.58 = 2,174.13/x
  3. Step 3: Cross multiply
    3,830.13x = 5,285.58 × 2,174.13
  4. Step 4: Simplify right side
    3,830.13x = 11,491,538.05
  5. Step 5: Solve for x
    x = 11,491,538.05/3,830.13
  6. Step 6: Final answer
    x = 3,000.30

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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.