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Finding the Fourth Proportional to 2,986.69, 4,480.03 and 1,341.32

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Solution

The fourth proportional to 2,986.69, 4,480.03 and 1,341.32 is: 2,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.69 : 4,480.03 = 1,341.32 : x
  2. Step 2: Convert to fraction form
    2,986.69/4,480.03 = 1,341.32/x
  3. Step 3: Cross multiply
    2,986.69x = 4,480.03 × 1,341.32
  4. Step 4: Simplify right side
    2,986.69x = 6,009,136.89
  5. Step 5: Solve for x
    x = 6,009,136.89/2,986.69
  6. Step 6: Final answer
    x = 2,011.97

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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.