Home / 5,475-8,215.38-2,700.84

Finding the Fourth Proportional to 5,475, 8,215.38 and 2,700.84

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Solution

The fourth proportional to 5,475, 8,215.38 and 2,700.84 is: 4,052.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475 : 8,215.38 = 2,700.84 : x
  2. Step 2: Convert to fraction form
    5,475/8,215.38 = 2,700.84/x
  3. Step 3: Cross multiply
    5,475x = 8,215.38 × 2,700.84
  4. Step 4: Simplify right side
    5,475x = 22,188,426.92
  5. Step 5: Solve for x
    x = 22,188,426.92/5,475
  6. Step 6: Final answer
    x = 4,052.68

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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.