Home / 3,578.28-4,931.37-2,581.80

Finding the Fourth Proportional to 3,578.28, 4,931.37 and 2,581.80

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Solution

The fourth proportional to 3,578.28, 4,931.37 and 2,581.80 is: 3,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.28 : 4,931.37 = 2,581.80 : x
  2. Step 2: Convert to fraction form
    3,578.28/4,931.37 = 2,581.80/x
  3. Step 3: Cross multiply
    3,578.28x = 4,931.37 × 2,581.80
  4. Step 4: Simplify right side
    3,578.28x = 12,731,811.07
  5. Step 5: Solve for x
    x = 12,731,811.07/3,578.28
  6. Step 6: Final answer
    x = 3,558.08

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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.