Home / 2,349.12-3,521.36-809.04

Finding the Fourth Proportional to 2,349.12, 3,521.36 and 809.04

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Solution

The fourth proportional to 2,349.12, 3,521.36 and 809.04 is: 1,212.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349.12 : 3,521.36 = 809.04 : x
  2. Step 2: Convert to fraction form
    2,349.12/3,521.36 = 809.04/x
  3. Step 3: Cross multiply
    2,349.12x = 3,521.36 × 809.04
  4. Step 4: Simplify right side
    2,349.12x = 2,848,921.09
  5. Step 5: Solve for x
    x = 2,848,921.09/2,349.12
  6. Step 6: Final answer
    x = 1,212.76

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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.