Home / 1,579.24-2,179.74-1,047.88

Finding the Fourth Proportional to 1,579.24, 2,179.74 and 1,047.88

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Solution

The fourth proportional to 1,579.24, 2,179.74 and 1,047.88 is: 1,446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.24 : 2,179.74 = 1,047.88 : x
  2. Step 2: Convert to fraction form
    1,579.24/2,179.74 = 1,047.88/x
  3. Step 3: Cross multiply
    1,579.24x = 2,179.74 × 1,047.88
  4. Step 4: Simplify right side
    1,579.24x = 2,284,105.95
  5. Step 5: Solve for x
    x = 2,284,105.95/1,579.24
  6. Step 6: Final answer
    x = 1,446.33

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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.