Home / 2,515.36-3,754.37-2,142.76

Finding the Fourth Proportional to 2,515.36, 3,754.37 and 2,142.76

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Solution

The fourth proportional to 2,515.36, 3,754.37 and 2,142.76 is: 3,198.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.36 : 3,754.37 = 2,142.76 : x
  2. Step 2: Convert to fraction form
    2,515.36/3,754.37 = 2,142.76/x
  3. Step 3: Cross multiply
    2,515.36x = 3,754.37 × 2,142.76
  4. Step 4: Simplify right side
    2,515.36x = 8,044,713.86
  5. Step 5: Solve for x
    x = 8,044,713.86/2,515.36
  6. Step 6: Final answer
    x = 3,198.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.