Home / 5,454.80-7,529.28-3,216.50

Finding the Fourth Proportional to 5,454.80, 7,529.28 and 3,216.50

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Solution

The fourth proportional to 5,454.80, 7,529.28 and 3,216.50 is: 4,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.80 : 7,529.28 = 3,216.50 : x
  2. Step 2: Convert to fraction form
    5,454.80/7,529.28 = 3,216.50/x
  3. Step 3: Cross multiply
    5,454.80x = 7,529.28 × 3,216.50
  4. Step 4: Simplify right side
    5,454.80x = 24,217,929.12
  5. Step 5: Solve for x
    x = 24,217,929.12/5,454.80
  6. Step 6: Final answer
    x = 4,439.75

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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.