Home / 3,140.69-4,334.61-1,881.80

Finding the Fourth Proportional to 3,140.69, 4,334.61 and 1,881.80

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Solution

The fourth proportional to 3,140.69, 4,334.61 and 1,881.80 is: 2,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.69 : 4,334.61 = 1,881.80 : x
  2. Step 2: Convert to fraction form
    3,140.69/4,334.61 = 1,881.80/x
  3. Step 3: Cross multiply
    3,140.69x = 4,334.61 × 1,881.80
  4. Step 4: Simplify right side
    3,140.69x = 8,156,879.93
  5. Step 5: Solve for x
    x = 8,156,879.93/3,140.69
  6. Step 6: Final answer
    x = 2,597.16

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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.