Home / 2,131.69-2,941.73-1,346.39

Finding the Fourth Proportional to 2,131.69, 2,941.73 and 1,346.39

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Solution

The fourth proportional to 2,131.69, 2,941.73 and 1,346.39 is: 1,858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.69 : 2,941.73 = 1,346.39 : x
  2. Step 2: Convert to fraction form
    2,131.69/2,941.73 = 1,346.39/x
  3. Step 3: Cross multiply
    2,131.69x = 2,941.73 × 1,346.39
  4. Step 4: Simplify right side
    2,131.69x = 3,960,721.53
  5. Step 5: Solve for x
    x = 3,960,721.53/2,131.69
  6. Step 6: Final answer
    x = 1,858.02

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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.