Home / 4,140.60-5,708.70-2,721.48

Finding the Fourth Proportional to 4,140.60, 5,708.70 and 2,721.48

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Solution

The fourth proportional to 4,140.60, 5,708.70 and 2,721.48 is: 3,752.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.60 : 5,708.70 = 2,721.48 : x
  2. Step 2: Convert to fraction form
    4,140.60/5,708.70 = 2,721.48/x
  3. Step 3: Cross multiply
    4,140.60x = 5,708.70 × 2,721.48
  4. Step 4: Simplify right side
    4,140.60x = 15,536,112.88
  5. Step 5: Solve for x
    x = 15,536,112.88/4,140.60
  6. Step 6: Final answer
    x = 3,752.14

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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.