Home / 5,403.21-7,455.44-3,165.13

Finding the Fourth Proportional to 5,403.21, 7,455.44 and 3,165.13

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Solution

The fourth proportional to 5,403.21, 7,455.44 and 3,165.13 is: 4,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.21 : 7,455.44 = 3,165.13 : x
  2. Step 2: Convert to fraction form
    5,403.21/7,455.44 = 3,165.13/x
  3. Step 3: Cross multiply
    5,403.21x = 7,455.44 × 3,165.13
  4. Step 4: Simplify right side
    5,403.21x = 23,597,412.10
  5. Step 5: Solve for x
    x = 23,597,412.10/5,403.21
  6. Step 6: Final answer
    x = 4,367.30

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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.