Home / 3,145.48-4,720.20-1,197.88

Finding the Fourth Proportional to 3,145.48, 4,720.20 and 1,197.88

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Solution

The fourth proportional to 3,145.48, 4,720.20 and 1,197.88 is: 1,797.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.48 : 4,720.20 = 1,197.88 : x
  2. Step 2: Convert to fraction form
    3,145.48/4,720.20 = 1,197.88/x
  3. Step 3: Cross multiply
    3,145.48x = 4,720.20 × 1,197.88
  4. Step 4: Simplify right side
    3,145.48x = 5,654,233.18
  5. Step 5: Solve for x
    x = 5,654,233.18/3,145.48
  6. Step 6: Final answer
    x = 1,797.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.