Home / 5,415.72-7,473.24-3,426.90

Finding the Fourth Proportional to 5,415.72, 7,473.24 and 3,426.90

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Solution

The fourth proportional to 5,415.72, 7,473.24 and 3,426.90 is: 4,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.72 : 7,473.24 = 3,426.90 : x
  2. Step 2: Convert to fraction form
    5,415.72/7,473.24 = 3,426.90/x
  3. Step 3: Cross multiply
    5,415.72x = 7,473.24 × 3,426.90
  4. Step 4: Simplify right side
    5,415.72x = 25,610,046.16
  5. Step 5: Solve for x
    x = 25,610,046.16/5,415.72
  6. Step 6: Final answer
    x = 4,728.83

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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.