Home / 3,612.13-5,419.00-1,147.10

Finding the Fourth Proportional to 3,612.13, 5,419.00 and 1,147.10

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Solution

The fourth proportional to 3,612.13, 5,419.00 and 1,147.10 is: 1,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.13 : 5,419.00 = 1,147.10 : x
  2. Step 2: Convert to fraction form
    3,612.13/5,419.00 = 1,147.10/x
  3. Step 3: Cross multiply
    3,612.13x = 5,419.00 × 1,147.10
  4. Step 4: Simplify right side
    3,612.13x = 6,216,109.24
  5. Step 5: Solve for x
    x = 6,216,109.24/3,612.13
  6. Step 6: Final answer
    x = 1,720.90

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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.