Home / 2,439.92-3,365.40-2,069.36

Finding the Fourth Proportional to 2,439.92, 3,365.40 and 2,069.36

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Solution

The fourth proportional to 2,439.92, 3,365.40 and 2,069.36 is: 2,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.92 : 3,365.40 = 2,069.36 : x
  2. Step 2: Convert to fraction form
    2,439.92/3,365.40 = 2,069.36/x
  3. Step 3: Cross multiply
    2,439.92x = 3,365.40 × 2,069.36
  4. Step 4: Simplify right side
    2,439.92x = 6,964,224.14
  5. Step 5: Solve for x
    x = 6,964,224.14/2,439.92
  6. Step 6: Final answer
    x = 2,854.28

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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.