Home / 4,145.60-5,718.60-3,149.12

Finding the Fourth Proportional to 4,145.60, 5,718.60 and 3,149.12

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Solution

The fourth proportional to 4,145.60, 5,718.60 and 3,149.12 is: 4,344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.60 : 5,718.60 = 3,149.12 : x
  2. Step 2: Convert to fraction form
    4,145.60/5,718.60 = 3,149.12/x
  3. Step 3: Cross multiply
    4,145.60x = 5,718.60 × 3,149.12
  4. Step 4: Simplify right side
    4,145.60x = 18,008,557.63
  5. Step 5: Solve for x
    x = 18,008,557.63/4,145.60
  6. Step 6: Final answer
    x = 4,344.02

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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.