Home / 4,145.90-5,719.44-2,890.04

Finding the Fourth Proportional to 4,145.90, 5,719.44 and 2,890.04

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Solution

The fourth proportional to 4,145.90, 5,719.44 and 2,890.04 is: 3,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.90 : 5,719.44 = 2,890.04 : x
  2. Step 2: Convert to fraction form
    4,145.90/5,719.44 = 2,890.04/x
  3. Step 3: Cross multiply
    4,145.90x = 5,719.44 × 2,890.04
  4. Step 4: Simplify right side
    4,145.90x = 16,529,410.38
  5. Step 5: Solve for x
    x = 16,529,410.38/4,145.90
  6. Step 6: Final answer
    x = 3,986.93

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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.