Home / 2,788.40-4,180.29-2,174.83

Finding the Fourth Proportional to 2,788.40, 4,180.29 and 2,174.83

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Solution

The fourth proportional to 2,788.40, 4,180.29 and 2,174.83 is: 3,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.40 : 4,180.29 = 2,174.83 : x
  2. Step 2: Convert to fraction form
    2,788.40/4,180.29 = 2,174.83/x
  3. Step 3: Cross multiply
    2,788.40x = 4,180.29 × 2,174.83
  4. Step 4: Simplify right side
    2,788.40x = 9,091,401.49
  5. Step 5: Solve for x
    x = 9,091,401.49/2,788.40
  6. Step 6: Final answer
    x = 3,260.43

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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.