Home / 3,188.79-4,785.03-1,339.76

Finding the Fourth Proportional to 3,188.79, 4,785.03 and 1,339.76

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Solution

The fourth proportional to 3,188.79, 4,785.03 and 1,339.76 is: 2,010.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.79 : 4,785.03 = 1,339.76 : x
  2. Step 2: Convert to fraction form
    3,188.79/4,785.03 = 1,339.76/x
  3. Step 3: Cross multiply
    3,188.79x = 4,785.03 × 1,339.76
  4. Step 4: Simplify right side
    3,188.79x = 6,410,767.87
  5. Step 5: Solve for x
    x = 6,410,767.87/3,188.79
  6. Step 6: Final answer
    x = 2,010.41

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1.5x scale

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.