Home / 7,419.83-11,127.94-2,488.19

Finding the Fourth Proportional to 7,419.83, 11,127.94 and 2,488.19

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Solution

The fourth proportional to 7,419.83, 11,127.94 and 2,488.19 is: 3,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.83 : 11,127.94 = 2,488.19 : x
  2. Step 2: Convert to fraction form
    7,419.83/11,127.94 = 2,488.19/x
  3. Step 3: Cross multiply
    7,419.83x = 11,127.94 × 2,488.19
  4. Step 4: Simplify right side
    7,419.83x = 27,688,367.17
  5. Step 5: Solve for x
    x = 27,688,367.17/7,419.83
  6. Step 6: Final answer
    x = 3,731.67

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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.