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Finding the Fourth Proportional to 3,477.67, 5,216.49 and 880.61

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Solution

The fourth proportional to 3,477.67, 5,216.49 and 880.61 is: 1,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.67 : 5,216.49 = 880.61 : x
  2. Step 2: Convert to fraction form
    3,477.67/5,216.49 = 880.61/x
  3. Step 3: Cross multiply
    3,477.67x = 5,216.49 × 880.61
  4. Step 4: Simplify right side
    3,477.67x = 4,593,667.18
  5. Step 5: Solve for x
    x = 4,593,667.18/3,477.67
  6. Step 6: Final answer
    x = 1,320.90

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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.