Home / 4,145.13-5,720.21-2,256.73

Finding the Fourth Proportional to 4,145.13, 5,720.21 and 2,256.73

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Solution

The fourth proportional to 4,145.13, 5,720.21 and 2,256.73 is: 3,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.13 : 5,720.21 = 2,256.73 : x
  2. Step 2: Convert to fraction form
    4,145.13/5,720.21 = 2,256.73/x
  3. Step 3: Cross multiply
    4,145.13x = 5,720.21 × 2,256.73
  4. Step 4: Simplify right side
    4,145.13x = 12,908,969.51
  5. Step 5: Solve for x
    x = 12,908,969.51/4,145.13
  6. Step 6: Final answer
    x = 3,114.25

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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.