Home / 2,721.24-3,755.67-2,647.11

Finding the Fourth Proportional to 2,721.24, 3,755.67 and 2,647.11

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Solution

The fourth proportional to 2,721.24, 3,755.67 and 2,647.11 is: 3,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.24 : 3,755.67 = 2,647.11 : x
  2. Step 2: Convert to fraction form
    2,721.24/3,755.67 = 2,647.11/x
  3. Step 3: Cross multiply
    2,721.24x = 3,755.67 × 2,647.11
  4. Step 4: Simplify right side
    2,721.24x = 9,941,671.61
  5. Step 5: Solve for x
    x = 9,941,671.61/2,721.24
  6. Step 6: Final answer
    x = 3,653.36

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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.