Home / 3,140.58-4,332.61-1,945.25

Finding the Fourth Proportional to 3,140.58, 4,332.61 and 1,945.25

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Solution

The fourth proportional to 3,140.58, 4,332.61 and 1,945.25 is: 2,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.58 : 4,332.61 = 1,945.25 : x
  2. Step 2: Convert to fraction form
    3,140.58/4,332.61 = 1,945.25/x
  3. Step 3: Cross multiply
    3,140.58x = 4,332.61 × 1,945.25
  4. Step 4: Simplify right side
    3,140.58x = 8,428,003.63
  5. Step 5: Solve for x
    x = 8,428,003.63/3,140.58
  6. Step 6: Final answer
    x = 2,683.58

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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.