Home / 4,200.24-6,299.88-1,122

Finding the Fourth Proportional to 4,200.24, 6,299.88 and 1,122

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Solution

The fourth proportional to 4,200.24, 6,299.88 and 1,122 is: 1,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.24 : 6,299.88 = 1,122 : x
  2. Step 2: Convert to fraction form
    4,200.24/6,299.88 = 1,122/x
  3. Step 3: Cross multiply
    4,200.24x = 6,299.88 × 1,122
  4. Step 4: Simplify right side
    4,200.24x = 7,068,465.36
  5. Step 5: Solve for x
    x = 7,068,465.36/4,200.24
  6. Step 6: Final answer
    x = 1,682.87

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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.