Home / 3,581.37-4,941.89-1,987.98

Finding the Fourth Proportional to 3,581.37, 4,941.89 and 1,987.98

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Solution

The fourth proportional to 3,581.37, 4,941.89 and 1,987.98 is: 2,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.37 : 4,941.89 = 1,987.98 : x
  2. Step 2: Convert to fraction form
    3,581.37/4,941.89 = 1,987.98/x
  3. Step 3: Cross multiply
    3,581.37x = 4,941.89 × 1,987.98
  4. Step 4: Simplify right side
    3,581.37x = 9,824,357.47
  5. Step 5: Solve for x
    x = 9,824,357.47/3,581.37
  6. Step 6: Final answer
    x = 2,743.18

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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.