Home / 4,209.92-5,812.56-2,721.44

Finding the Fourth Proportional to 4,209.92, 5,812.56 and 2,721.44

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Solution

The fourth proportional to 4,209.92, 5,812.56 and 2,721.44 is: 3,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.92 : 5,812.56 = 2,721.44 : x
  2. Step 2: Convert to fraction form
    4,209.92/5,812.56 = 2,721.44/x
  3. Step 3: Cross multiply
    4,209.92x = 5,812.56 × 2,721.44
  4. Step 4: Simplify right side
    4,209.92x = 15,818,533.29
  5. Step 5: Solve for x
    x = 15,818,533.29/4,209.92
  6. Step 6: Final answer
    x = 3,757.44

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1.5x scale

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.