Home / 3,713.41-5,126.84-2,389.42

Finding the Fourth Proportional to 3,713.41, 5,126.84 and 2,389.42

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Solution

The fourth proportional to 3,713.41, 5,126.84 and 2,389.42 is: 3,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.41 : 5,126.84 = 2,389.42 : x
  2. Step 2: Convert to fraction form
    3,713.41/5,126.84 = 2,389.42/x
  3. Step 3: Cross multiply
    3,713.41x = 5,126.84 × 2,389.42
  4. Step 4: Simplify right side
    3,713.41x = 12,250,169.76
  5. Step 5: Solve for x
    x = 12,250,169.76/3,713.41
  6. Step 6: Final answer
    x = 3,298.90

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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.