Home / 3,419.32-5,129.08-1,079.34

Finding the Fourth Proportional to 3,419.32, 5,129.08 and 1,079.34

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Solution

The fourth proportional to 3,419.32, 5,129.08 and 1,079.34 is: 1,619.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.32 : 5,129.08 = 1,079.34 : x
  2. Step 2: Convert to fraction form
    3,419.32/5,129.08 = 1,079.34/x
  3. Step 3: Cross multiply
    3,419.32x = 5,129.08 × 1,079.34
  4. Step 4: Simplify right side
    3,419.32x = 5,536,021.21
  5. Step 5: Solve for x
    x = 5,536,021.21/3,419.32
  6. Step 6: Final answer
    x = 1,619.04

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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.