Home / 3,718.13-5,131.26-2,456.98

Finding the Fourth Proportional to 3,718.13, 5,131.26 and 2,456.98

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Solution

The fourth proportional to 3,718.13, 5,131.26 and 2,456.98 is: 3,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.13 : 5,131.26 = 2,456.98 : x
  2. Step 2: Convert to fraction form
    3,718.13/5,131.26 = 2,456.98/x
  3. Step 3: Cross multiply
    3,718.13x = 5,131.26 × 2,456.98
  4. Step 4: Simplify right side
    3,718.13x = 12,607,390.21
  5. Step 5: Solve for x
    x = 12,607,390.21/3,718.13
  6. Step 6: Final answer
    x = 3,390.78

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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.