Home / 1,579.92-2,179.16-1,160.40

Finding the Fourth Proportional to 1,579.92, 2,179.16 and 1,160.40

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Solution

The fourth proportional to 1,579.92, 2,179.16 and 1,160.40 is: 1,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.92 : 2,179.16 = 1,160.40 : x
  2. Step 2: Convert to fraction form
    1,579.92/2,179.16 = 1,160.40/x
  3. Step 3: Cross multiply
    1,579.92x = 2,179.16 × 1,160.40
  4. Step 4: Simplify right side
    1,579.92x = 2,528,697.26
  5. Step 5: Solve for x
    x = 2,528,697.26/1,579.92
  6. Step 6: Final answer
    x = 1,600.52

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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.