Home / 5,375.21-7,420.28-3,585.66

Finding the Fourth Proportional to 5,375.21, 7,420.28 and 3,585.66

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Solution

The fourth proportional to 5,375.21, 7,420.28 and 3,585.66 is: 4,949.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.21 : 7,420.28 = 3,585.66 : x
  2. Step 2: Convert to fraction form
    5,375.21/7,420.28 = 3,585.66/x
  3. Step 3: Cross multiply
    5,375.21x = 7,420.28 × 3,585.66
  4. Step 4: Simplify right side
    5,375.21x = 26,606,610.15
  5. Step 5: Solve for x
    x = 26,606,610.15/5,375.21
  6. Step 6: Final answer
    x = 4,949.88

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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.