Home / 5,477.12-8,207.04-2,188.16

Finding the Fourth Proportional to 5,477.12, 8,207.04 and 2,188.16

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Solution

The fourth proportional to 5,477.12, 8,207.04 and 2,188.16 is: 3,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.12 : 8,207.04 = 2,188.16 : x
  2. Step 2: Convert to fraction form
    5,477.12/8,207.04 = 2,188.16/x
  3. Step 3: Cross multiply
    5,477.12x = 8,207.04 × 2,188.16
  4. Step 4: Simplify right side
    5,477.12x = 17,958,316.65
  5. Step 5: Solve for x
    x = 17,958,316.65/5,477.12
  6. Step 6: Final answer
    x = 3,278.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.