Home / 5,420.64-7,480.40-3,062.72

Finding the Fourth Proportional to 5,420.64, 7,480.40 and 3,062.72

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Solution

The fourth proportional to 5,420.64, 7,480.40 and 3,062.72 is: 4,226.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.64 : 7,480.40 = 3,062.72 : x
  2. Step 2: Convert to fraction form
    5,420.64/7,480.40 = 3,062.72/x
  3. Step 3: Cross multiply
    5,420.64x = 7,480.40 × 3,062.72
  4. Step 4: Simplify right side
    5,420.64x = 22,910,370.69
  5. Step 5: Solve for x
    x = 22,910,370.69/5,420.64
  6. Step 6: Final answer
    x = 4,226.51

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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.