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Finding the Fourth Proportional to 5,596.40, 8,387.40 and 2,668.40

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Solution

The fourth proportional to 5,596.40, 8,387.40 and 2,668.40 is: 3,999.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,596.40 : 8,387.40 = 2,668.40 : x
  2. Step 2: Convert to fraction form
    5,596.40/8,387.40 = 2,668.40/x
  3. Step 3: Cross multiply
    5,596.40x = 8,387.40 × 2,668.40
  4. Step 4: Simplify right side
    5,596.40x = 22,380,938.16
  5. Step 5: Solve for x
    x = 22,380,938.16/5,596.40
  6. Step 6: Final answer
    x = 3,999.17

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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.