Home / 5,430.29-7,493.58-3,072.38

Finding the Fourth Proportional to 5,430.29, 7,493.58 and 3,072.38

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Solution

The fourth proportional to 5,430.29, 7,493.58 and 3,072.38 is: 4,239.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.29 : 7,493.58 = 3,072.38 : x
  2. Step 2: Convert to fraction form
    5,430.29/7,493.58 = 3,072.38/x
  3. Step 3: Cross multiply
    5,430.29x = 7,493.58 × 3,072.38
  4. Step 4: Simplify right side
    5,430.29x = 23,023,087.85
  5. Step 5: Solve for x
    x = 23,023,087.85/5,430.29
  6. Step 6: Final answer
    x = 4,239.76

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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.