Home / 2,918.75-4,378.99-1,359.67

Finding the Fourth Proportional to 2,918.75, 4,378.99 and 1,359.67

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Solution

The fourth proportional to 2,918.75, 4,378.99 and 1,359.67 is: 2,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.75 : 4,378.99 = 1,359.67 : x
  2. Step 2: Convert to fraction form
    2,918.75/4,378.99 = 1,359.67/x
  3. Step 3: Cross multiply
    2,918.75x = 4,378.99 × 1,359.67
  4. Step 4: Simplify right side
    2,918.75x = 5,953,981.33
  5. Step 5: Solve for x
    x = 5,953,981.33/2,918.75
  6. Step 6: Final answer
    x = 2,039.91

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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.