Home / 4,145.55-5,720.85-2,257.10

Finding the Fourth Proportional to 4,145.55, 5,720.85 and 2,257.10

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Solution

The fourth proportional to 4,145.55, 5,720.85 and 2,257.10 is: 3,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.55 : 5,720.85 = 2,257.10 : x
  2. Step 2: Convert to fraction form
    4,145.55/5,720.85 = 2,257.10/x
  3. Step 3: Cross multiply
    4,145.55x = 5,720.85 × 2,257.10
  4. Step 4: Simplify right side
    4,145.55x = 12,912,544.84
  5. Step 5: Solve for x
    x = 12,912,544.84/4,145.55
  6. Step 6: Final answer
    x = 3,114.80

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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.