Home / 5,455.91-7,530.96-3,218.42

Finding the Fourth Proportional to 5,455.91, 7,530.96 and 3,218.42

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Solution

The fourth proportional to 5,455.91, 7,530.96 and 3,218.42 is: 4,442.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.91 : 7,530.96 = 3,218.42 : x
  2. Step 2: Convert to fraction form
    5,455.91/7,530.96 = 3,218.42/x
  3. Step 3: Cross multiply
    5,455.91x = 7,530.96 × 3,218.42
  4. Step 4: Simplify right side
    5,455.91x = 24,237,754.63
  5. Step 5: Solve for x
    x = 24,237,754.63/5,455.91
  6. Step 6: Final answer
    x = 4,442.48

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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.