Home / 4,147.21-6,220.82-1,225.74

Finding the Fourth Proportional to 4,147.21, 6,220.82 and 1,225.74

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Solution

The fourth proportional to 4,147.21, 6,220.82 and 1,225.74 is: 1,838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.21 : 6,220.82 = 1,225.74 : x
  2. Step 2: Convert to fraction form
    4,147.21/6,220.82 = 1,225.74/x
  3. Step 3: Cross multiply
    4,147.21x = 6,220.82 × 1,225.74
  4. Step 4: Simplify right side
    4,147.21x = 7,625,134.30
  5. Step 5: Solve for x
    x = 7,625,134.30/4,147.21
  6. Step 6: Final answer
    x = 1,838.62

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1.5x scale

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.