Home / 1,579.20-2,367.36-808.80

Finding the Fourth Proportional to 1,579.20, 2,367.36 and 808.80

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Solution

The fourth proportional to 1,579.20, 2,367.36 and 808.80 is: 1,212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.20 : 2,367.36 = 808.80 : x
  2. Step 2: Convert to fraction form
    1,579.20/2,367.36 = 808.80/x
  3. Step 3: Cross multiply
    1,579.20x = 2,367.36 × 808.80
  4. Step 4: Simplify right side
    1,579.20x = 1,914,720.77
  5. Step 5: Solve for x
    x = 1,914,720.77/1,579.20
  6. Step 6: Final answer
    x = 1,212.46

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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.