Home / 4,147.61-6,221.50-1,225.92

Finding the Fourth Proportional to 4,147.61, 6,221.50 and 1,225.92

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Solution

The fourth proportional to 4,147.61, 6,221.50 and 1,225.92 is: 1,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.61 : 6,221.50 = 1,225.92 : x
  2. Step 2: Convert to fraction form
    4,147.61/6,221.50 = 1,225.92/x
  3. Step 3: Cross multiply
    4,147.61x = 6,221.50 × 1,225.92
  4. Step 4: Simplify right side
    4,147.61x = 7,627,039.46
  5. Step 5: Solve for x
    x = 7,627,039.46/4,147.61
  6. Step 6: Final answer
    x = 1,838.90

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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.