Home / 3,285.24-4,924.92-1,640.16

Finding the Fourth Proportional to 3,285.24, 4,924.92 and 1,640.16

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Solution

The fourth proportional to 3,285.24, 4,924.92 and 1,640.16 is: 2,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.24 : 4,924.92 = 1,640.16 : x
  2. Step 2: Convert to fraction form
    3,285.24/4,924.92 = 1,640.16/x
  3. Step 3: Cross multiply
    3,285.24x = 4,924.92 × 1,640.16
  4. Step 4: Simplify right side
    3,285.24x = 8,077,656.79
  5. Step 5: Solve for x
    x = 8,077,656.79/3,285.24
  6. Step 6: Final answer
    x = 2,458.77

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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.