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Finding the Fourth Proportional to 3,315.88, 4,973.88 and 1,124.67

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Solution

The fourth proportional to 3,315.88, 4,973.88 and 1,124.67 is: 1,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.88 : 4,973.88 = 1,124.67 : x
  2. Step 2: Convert to fraction form
    3,315.88/4,973.88 = 1,124.67/x
  3. Step 3: Cross multiply
    3,315.88x = 4,973.88 × 1,124.67
  4. Step 4: Simplify right side
    3,315.88x = 5,593,945.94
  5. Step 5: Solve for x
    x = 5,593,945.94/3,315.88
  6. Step 6: Final answer
    x = 1,687.02

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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.