Home / 3,423.24-5,138.07-1,780.95

Finding the Fourth Proportional to 3,423.24, 5,138.07 and 1,780.95

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Solution

The fourth proportional to 3,423.24, 5,138.07 and 1,780.95 is: 2,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.24 : 5,138.07 = 1,780.95 : x
  2. Step 2: Convert to fraction form
    3,423.24/5,138.07 = 1,780.95/x
  3. Step 3: Cross multiply
    3,423.24x = 5,138.07 × 1,780.95
  4. Step 4: Simplify right side
    3,423.24x = 9,150,645.77
  5. Step 5: Solve for x
    x = 9,150,645.77/3,423.24
  6. Step 6: Final answer
    x = 2,673.10

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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.