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Finding the Fourth Proportional to 3,607.80, 5,400.35 and 3,523.56

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Solution

The fourth proportional to 3,607.80, 5,400.35 and 3,523.56 is: 5,274.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.80 : 5,400.35 = 3,523.56 : x
  2. Step 2: Convert to fraction form
    3,607.80/5,400.35 = 3,523.56/x
  3. Step 3: Cross multiply
    3,607.80x = 5,400.35 × 3,523.56
  4. Step 4: Simplify right side
    3,607.80x = 19,028,457.25
  5. Step 5: Solve for x
    x = 19,028,457.25/3,607.80
  6. Step 6: Final answer
    x = 5,274.26

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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.