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Finding the Fourth Proportional to 3,608.40, 5,412.60 and 3,527.40

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Solution

The fourth proportional to 3,608.40, 5,412.60 and 3,527.40 is: 5,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.40 : 5,412.60 = 3,527.40 : x
  2. Step 2: Convert to fraction form
    3,608.40/5,412.60 = 3,527.40/x
  3. Step 3: Cross multiply
    3,608.40x = 5,412.60 × 3,527.40
  4. Step 4: Simplify right side
    3,608.40x = 19,092,405.24
  5. Step 5: Solve for x
    x = 19,092,405.24/3,608.40
  6. Step 6: Final answer
    x = 5,291.10

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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.