Home / 3,166.47-4,369.26-1,987.92

Finding the Fourth Proportional to 3,166.47, 4,369.26 and 1,987.92

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Solution

The fourth proportional to 3,166.47, 4,369.26 and 1,987.92 is: 2,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.47 : 4,369.26 = 1,987.92 : x
  2. Step 2: Convert to fraction form
    3,166.47/4,369.26 = 1,987.92/x
  3. Step 3: Cross multiply
    3,166.47x = 4,369.26 × 1,987.92
  4. Step 4: Simplify right side
    3,166.47x = 8,685,739.34
  5. Step 5: Solve for x
    x = 8,685,739.34/3,166.47
  6. Step 6: Final answer
    x = 2,743.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.