Home / 4,142.32-6,214.36-1,220.38

Finding the Fourth Proportional to 4,142.32, 6,214.36 and 1,220.38

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Solution

The fourth proportional to 4,142.32, 6,214.36 and 1,220.38 is: 1,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.32 : 6,214.36 = 1,220.38 : x
  2. Step 2: Convert to fraction form
    4,142.32/6,214.36 = 1,220.38/x
  3. Step 3: Cross multiply
    4,142.32x = 6,214.36 × 1,220.38
  4. Step 4: Simplify right side
    4,142.32x = 7,583,880.66
  5. Step 5: Solve for x
    x = 7,583,880.66/4,142.32
  6. Step 6: Final answer
    x = 1,830.83

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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.