Home / 4,142.76-6,212.28-1,220.04

Finding the Fourth Proportional to 4,142.76, 6,212.28 and 1,220.04

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Solution

The fourth proportional to 4,142.76, 6,212.28 and 1,220.04 is: 1,829.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.76 : 6,212.28 = 1,220.04 : x
  2. Step 2: Convert to fraction form
    4,142.76/6,212.28 = 1,220.04/x
  3. Step 3: Cross multiply
    4,142.76x = 6,212.28 × 1,220.04
  4. Step 4: Simplify right side
    4,142.76x = 7,579,230.09
  5. Step 5: Solve for x
    x = 7,579,230.09/4,142.76
  6. Step 6: Final answer
    x = 1,829.51

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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.