Home / 4,145.45-5,720.67-2,257.07

Finding the Fourth Proportional to 4,145.45, 5,720.67 and 2,257.07

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Solution

The fourth proportional to 4,145.45, 5,720.67 and 2,257.07 is: 3,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.45 : 5,720.67 = 2,257.07 : x
  2. Step 2: Convert to fraction form
    4,145.45/5,720.67 = 2,257.07/x
  3. Step 3: Cross multiply
    4,145.45x = 5,720.67 × 2,257.07
  4. Step 4: Simplify right side
    4,145.45x = 12,911,924.03
  5. Step 5: Solve for x
    x = 12,911,924.03/4,145.45
  6. Step 6: Final answer
    x = 3,114.73

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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.