Home / 5,383.90-7,428.72-3,025.72

Finding the Fourth Proportional to 5,383.90, 7,428.72 and 3,025.72

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Solution

The fourth proportional to 5,383.90, 7,428.72 and 3,025.72 is: 4,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.90 : 7,428.72 = 3,025.72 : x
  2. Step 2: Convert to fraction form
    5,383.90/7,428.72 = 3,025.72/x
  3. Step 3: Cross multiply
    5,383.90x = 7,428.72 × 3,025.72
  4. Step 4: Simplify right side
    5,383.90x = 22,477,226.68
  5. Step 5: Solve for x
    x = 22,477,226.68/5,383.90
  6. Step 6: Final answer
    x = 4,174.90

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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.