Home / 5,430.24-7,480.44-3,933.72

Finding the Fourth Proportional to 5,430.24, 7,480.44 and 3,933.72

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Solution

The fourth proportional to 5,430.24, 7,480.44 and 3,933.72 is: 5,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.24 : 7,480.44 = 3,933.72 : x
  2. Step 2: Convert to fraction form
    5,430.24/7,480.44 = 3,933.72/x
  3. Step 3: Cross multiply
    5,430.24x = 7,480.44 × 3,933.72
  4. Step 4: Simplify right side
    5,430.24x = 29,425,956.44
  5. Step 5: Solve for x
    x = 29,425,956.44/5,430.24
  6. Step 6: Final answer
    x = 5,418.91

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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.