Home / 3,419.07-5,124.81-1,338.09

Finding the Fourth Proportional to 3,419.07, 5,124.81 and 1,338.09

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Solution

The fourth proportional to 3,419.07, 5,124.81 and 1,338.09 is: 2,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.07 : 5,124.81 = 1,338.09 : x
  2. Step 2: Convert to fraction form
    3,419.07/5,124.81 = 1,338.09/x
  3. Step 3: Cross multiply
    3,419.07x = 5,124.81 × 1,338.09
  4. Step 4: Simplify right side
    3,419.07x = 6,857,457.01
  5. Step 5: Solve for x
    x = 6,857,457.01/3,419.07
  6. Step 6: Final answer
    x = 2,005.65

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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.