Home / 2,721.36-3,751.56-2,684.28

Finding the Fourth Proportional to 2,721.36, 3,751.56 and 2,684.28

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Solution

The fourth proportional to 2,721.36, 3,751.56 and 2,684.28 is: 3,700.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.36 : 3,751.56 = 2,684.28 : x
  2. Step 2: Convert to fraction form
    2,721.36/3,751.56 = 2,684.28/x
  3. Step 3: Cross multiply
    2,721.36x = 3,751.56 × 2,684.28
  4. Step 4: Simplify right side
    2,721.36x = 10,070,237.48
  5. Step 5: Solve for x
    x = 10,070,237.48/2,721.36
  6. Step 6: Final answer
    x = 3,700.44

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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.