Home / 3,155.28-4,733.64-1,207.68

Finding the Fourth Proportional to 3,155.28, 4,733.64 and 1,207.68

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Solution

The fourth proportional to 3,155.28, 4,733.64 and 1,207.68 is: 1,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.28 : 4,733.64 = 1,207.68 : x
  2. Step 2: Convert to fraction form
    3,155.28/4,733.64 = 1,207.68/x
  3. Step 3: Cross multiply
    3,155.28x = 4,733.64 × 1,207.68
  4. Step 4: Simplify right side
    3,155.28x = 5,716,722.36
  5. Step 5: Solve for x
    x = 5,716,722.36/3,155.28
  6. Step 6: Final answer
    x = 1,811.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.