Home / 7,419.92-11,130.44-2,489.58

Finding the Fourth Proportional to 7,419.92, 11,130.44 and 2,489.58

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Solution

The fourth proportional to 7,419.92, 11,130.44 and 2,489.58 is: 3,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.92 : 11,130.44 = 2,489.58 : x
  2. Step 2: Convert to fraction form
    7,419.92/11,130.44 = 2,489.58/x
  3. Step 3: Cross multiply
    7,419.92x = 11,130.44 × 2,489.58
  4. Step 4: Simplify right side
    7,419.92x = 27,710,120.82
  5. Step 5: Solve for x
    x = 27,710,120.82/7,419.92
  6. Step 6: Final answer
    x = 3,734.56

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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.