Home / 5,456.42-7,530.84-3,218.16

Finding the Fourth Proportional to 5,456.42, 7,530.84 and 3,218.16

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Solution

The fourth proportional to 5,456.42, 7,530.84 and 3,218.16 is: 4,441.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.42 : 7,530.84 = 3,218.16 : x
  2. Step 2: Convert to fraction form
    5,456.42/7,530.84 = 3,218.16/x
  3. Step 3: Cross multiply
    5,456.42x = 7,530.84 × 3,218.16
  4. Step 4: Simplify right side
    5,456.42x = 24,235,448.05
  5. Step 5: Solve for x
    x = 24,235,448.05/5,456.42
  6. Step 6: Final answer
    x = 4,441.64

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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.