Home / 3,830.08-5,285.44-2,174.08

Finding the Fourth Proportional to 3,830.08, 5,285.44 and 2,174.08

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Solution

The fourth proportional to 3,830.08, 5,285.44 and 2,174.08 is: 3,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.08 : 5,285.44 = 2,174.08 : x
  2. Step 2: Convert to fraction form
    3,830.08/5,285.44 = 2,174.08/x
  3. Step 3: Cross multiply
    3,830.08x = 5,285.44 × 2,174.08
  4. Step 4: Simplify right side
    3,830.08x = 11,490,969.40
  5. Step 5: Solve for x
    x = 11,490,969.40/3,830.08
  6. Step 6: Final answer
    x = 3,000.19

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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.