Home / 1,579.64-2,179.98-1,159.79

Finding the Fourth Proportional to 1,579.64, 2,179.98 and 1,159.79

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Solution

The fourth proportional to 1,579.64, 2,179.98 and 1,159.79 is: 1,600.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.64 : 2,179.98 = 1,159.79 : x
  2. Step 2: Convert to fraction form
    1,579.64/2,179.98 = 1,159.79/x
  3. Step 3: Cross multiply
    1,579.64x = 2,179.98 × 1,159.79
  4. Step 4: Simplify right side
    1,579.64x = 2,528,308.10
  5. Step 5: Solve for x
    x = 2,528,308.10/1,579.64
  6. Step 6: Final answer
    x = 1,600.56

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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.