Home / 3,133.83-4,325.81-2,138.39

Finding the Fourth Proportional to 3,133.83, 4,325.81 and 2,138.39

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Solution

The fourth proportional to 3,133.83, 4,325.81 and 2,138.39 is: 2,951.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.83 : 4,325.81 = 2,138.39 : x
  2. Step 2: Convert to fraction form
    3,133.83/4,325.81 = 2,138.39/x
  3. Step 3: Cross multiply
    3,133.83x = 4,325.81 × 2,138.39
  4. Step 4: Simplify right side
    3,133.83x = 9,250,277.08
  5. Step 5: Solve for x
    x = 9,250,277.08/3,133.83
  6. Step 6: Final answer
    x = 2,951.75

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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.