Home / 5,455.18-7,529.12-3,216.92

Finding the Fourth Proportional to 5,455.18, 7,529.12 and 3,216.92

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Solution

The fourth proportional to 5,455.18, 7,529.12 and 3,216.92 is: 4,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.18 : 7,529.12 = 3,216.92 : x
  2. Step 2: Convert to fraction form
    5,455.18/7,529.12 = 3,216.92/x
  3. Step 3: Cross multiply
    5,455.18x = 7,529.12 × 3,216.92
  4. Step 4: Simplify right side
    5,455.18x = 24,220,539.06
  5. Step 5: Solve for x
    x = 24,220,539.06/5,455.18
  6. Step 6: Final answer
    x = 4,439.92

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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.