Home / 4,145.30-5,720.46-2,256.86

Finding the Fourth Proportional to 4,145.30, 5,720.46 and 2,256.86

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Solution

The fourth proportional to 4,145.30, 5,720.46 and 2,256.86 is: 3,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.30 : 5,720.46 = 2,256.86 : x
  2. Step 2: Convert to fraction form
    4,145.30/5,720.46 = 2,256.86/x
  3. Step 3: Cross multiply
    4,145.30x = 5,720.46 × 2,256.86
  4. Step 4: Simplify right side
    4,145.30x = 12,910,292.71
  5. Step 5: Solve for x
    x = 12,910,292.71/4,145.30
  6. Step 6: Final answer
    x = 3,114.44

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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.