Home / 5,245.21-7,238.18-3,005.53

Finding the Fourth Proportional to 5,245.21, 7,238.18 and 3,005.53

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Solution

The fourth proportional to 5,245.21, 7,238.18 and 3,005.53 is: 4,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.21 : 7,238.18 = 3,005.53 : x
  2. Step 2: Convert to fraction form
    5,245.21/7,238.18 = 3,005.53/x
  3. Step 3: Cross multiply
    5,245.21x = 7,238.18 × 3,005.53
  4. Step 4: Simplify right side
    5,245.21x = 21,754,552.11
  5. Step 5: Solve for x
    x = 21,754,552.11/5,245.21
  6. Step 6: Final answer
    x = 4,147.51

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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.