Home / 3,788.16-5,230.24-3,091.20

Finding the Fourth Proportional to 3,788.16, 5,230.24 and 3,091.20

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Solution

The fourth proportional to 3,788.16, 5,230.24 and 3,091.20 is: 4,267.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.16 : 5,230.24 = 3,091.20 : x
  2. Step 2: Convert to fraction form
    3,788.16/5,230.24 = 3,091.20/x
  3. Step 3: Cross multiply
    3,788.16x = 5,230.24 × 3,091.20
  4. Step 4: Simplify right side
    3,788.16x = 16,167,717.89
  5. Step 5: Solve for x
    x = 16,167,717.89/3,788.16
  6. Step 6: Final answer
    x = 4,267.96

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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.