Home / 5,490.12-8,235.32-3,300.72

Finding the Fourth Proportional to 5,490.12, 8,235.32 and 3,300.72

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Solution

The fourth proportional to 5,490.12, 8,235.32 and 3,300.72 is: 4,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.12 : 8,235.32 = 3,300.72 : x
  2. Step 2: Convert to fraction form
    5,490.12/8,235.32 = 3,300.72/x
  3. Step 3: Cross multiply
    5,490.12x = 8,235.32 × 3,300.72
  4. Step 4: Simplify right side
    5,490.12x = 27,182,485.43
  5. Step 5: Solve for x
    x = 27,182,485.43/5,490.12
  6. Step 6: Final answer
    x = 4,951.16

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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.