Home / 2,353.87-3,240.91-1,999.09

Finding the Fourth Proportional to 2,353.87, 3,240.91 and 1,999.09

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Solution

The fourth proportional to 2,353.87, 3,240.91 and 1,999.09 is: 2,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.87 : 3,240.91 = 1,999.09 : x
  2. Step 2: Convert to fraction form
    2,353.87/3,240.91 = 1,999.09/x
  3. Step 3: Cross multiply
    2,353.87x = 3,240.91 × 1,999.09
  4. Step 4: Simplify right side
    2,353.87x = 6,478,870.77
  5. Step 5: Solve for x
    x = 6,478,870.77/2,353.87
  6. Step 6: Final answer
    x = 2,752.43

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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.