Home / 7,419.90-11,129.76-3,037.35

Finding the Fourth Proportional to 7,419.90, 11,129.76 and 3,037.35

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Solution

The fourth proportional to 7,419.90, 11,129.76 and 3,037.35 is: 4,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.90 : 11,129.76 = 3,037.35 : x
  2. Step 2: Convert to fraction form
    7,419.90/11,129.76 = 3,037.35/x
  3. Step 3: Cross multiply
    7,419.90x = 11,129.76 × 3,037.35
  4. Step 4: Simplify right side
    7,419.90x = 33,804,976.54
  5. Step 5: Solve for x
    x = 33,804,976.54/7,419.90
  6. Step 6: Final answer
    x = 4,555.99

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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.