Home / 3,419.49-5,131.54-1,339.24

Finding the Fourth Proportional to 3,419.49, 5,131.54 and 1,339.24

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Solution

The fourth proportional to 3,419.49, 5,131.54 and 1,339.24 is: 2,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.49 : 5,131.54 = 1,339.24 : x
  2. Step 2: Convert to fraction form
    3,419.49/5,131.54 = 1,339.24/x
  3. Step 3: Cross multiply
    3,419.49x = 5,131.54 × 1,339.24
  4. Step 4: Simplify right side
    3,419.49x = 6,872,341.32
  5. Step 5: Solve for x
    x = 6,872,341.32/3,419.49
  6. Step 6: Final answer
    x = 2,009.76

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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.