Home / 7,579.68-11,370.92-3,419.84

Finding the Fourth Proportional to 7,579.68, 11,370.92 and 3,419.84

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Solution

The fourth proportional to 7,579.68, 11,370.92 and 3,419.84 is: 5,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.68 : 11,370.92 = 3,419.84 : x
  2. Step 2: Convert to fraction form
    7,579.68/11,370.92 = 3,419.84/x
  3. Step 3: Cross multiply
    7,579.68x = 11,370.92 × 3,419.84
  4. Step 4: Simplify right side
    7,579.68x = 38,886,727.05
  5. Step 5: Solve for x
    x = 38,886,727.05/7,579.68
  6. Step 6: Final answer
    x = 5,130.39

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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.