Home / 2,192.13-3,285.36-1,639.98

Finding the Fourth Proportional to 2,192.13, 3,285.36 and 1,639.98

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Solution

The fourth proportional to 2,192.13, 3,285.36 and 1,639.98 is: 2,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.13 : 3,285.36 = 1,639.98 : x
  2. Step 2: Convert to fraction form
    2,192.13/3,285.36 = 1,639.98/x
  3. Step 3: Cross multiply
    2,192.13x = 3,285.36 × 1,639.98
  4. Step 4: Simplify right side
    2,192.13x = 5,387,924.69
  5. Step 5: Solve for x
    x = 5,387,924.69/2,192.13
  6. Step 6: Final answer
    x = 2,457.85

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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.