Home / 3,139.67-4,332.44-1,880.49

Finding the Fourth Proportional to 3,139.67, 4,332.44 and 1,880.49

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Solution

The fourth proportional to 3,139.67, 4,332.44 and 1,880.49 is: 2,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.67 : 4,332.44 = 1,880.49 : x
  2. Step 2: Convert to fraction form
    3,139.67/4,332.44 = 1,880.49/x
  3. Step 3: Cross multiply
    3,139.67x = 4,332.44 × 1,880.49
  4. Step 4: Simplify right side
    3,139.67x = 8,147,110.10
  5. Step 5: Solve for x
    x = 8,147,110.10/3,139.67
  6. Step 6: Final answer
    x = 2,594.89

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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.