Home / 2,323.60-3,206.30-1,328.78

Finding the Fourth Proportional to 2,323.60, 3,206.30 and 1,328.78

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Solution

The fourth proportional to 2,323.60, 3,206.30 and 1,328.78 is: 1,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,323.60 : 3,206.30 = 1,328.78 : x
  2. Step 2: Convert to fraction form
    2,323.60/3,206.30 = 1,328.78/x
  3. Step 3: Cross multiply
    2,323.60x = 3,206.30 × 1,328.78
  4. Step 4: Simplify right side
    2,323.60x = 4,260,467.31
  5. Step 5: Solve for x
    x = 4,260,467.31/2,323.60
  6. Step 6: Final answer
    x = 1,833.56

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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.