Home / 1,579.13-2,179.19-880.50

Finding the Fourth Proportional to 1,579.13, 2,179.19 and 880.50

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Solution

The fourth proportional to 1,579.13, 2,179.19 and 880.50 is: 1,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.13 : 2,179.19 = 880.50 : x
  2. Step 2: Convert to fraction form
    1,579.13/2,179.19 = 880.50/x
  3. Step 3: Cross multiply
    1,579.13x = 2,179.19 × 880.50
  4. Step 4: Simplify right side
    1,579.13x = 1,918,776.80
  5. Step 5: Solve for x
    x = 1,918,776.80/1,579.13
  6. Step 6: Final answer
    x = 1,215.08

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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.