Home / 4,145.48-5,720.72-2,257.07

Finding the Fourth Proportional to 4,145.48, 5,720.72 and 2,257.07

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Solution

The fourth proportional to 4,145.48, 5,720.72 and 2,257.07 is: 3,114.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.48 : 5,720.72 = 2,257.07 : x
  2. Step 2: Convert to fraction form
    4,145.48/5,720.72 = 2,257.07/x
  3. Step 3: Cross multiply
    4,145.48x = 5,720.72 × 2,257.07
  4. Step 4: Simplify right side
    4,145.48x = 12,912,025.60
  5. Step 5: Solve for x
    x = 12,912,025.60/4,145.48
  6. Step 6: Final answer
    x = 3,114.72

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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.