Home / 3,190.18-4,785.49-1,339.45

Finding the Fourth Proportional to 3,190.18, 4,785.49 and 1,339.45

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Solution

The fourth proportional to 3,190.18, 4,785.49 and 1,339.45 is: 2,009.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.18 : 4,785.49 = 1,339.45 : x
  2. Step 2: Convert to fraction form
    3,190.18/4,785.49 = 1,339.45/x
  3. Step 3: Cross multiply
    3,190.18x = 4,785.49 × 1,339.45
  4. Step 4: Simplify right side
    3,190.18x = 6,409,924.58
  5. Step 5: Solve for x
    x = 6,409,924.58/3,190.18
  6. Step 6: Final answer
    x = 2,009.27

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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.