Home / 1,581.87-2,180.22-1,359.93

Finding the Fourth Proportional to 1,581.87, 2,180.22 and 1,359.93

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Solution

The fourth proportional to 1,581.87, 2,180.22 and 1,359.93 is: 1,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.87 : 2,180.22 = 1,359.93 : x
  2. Step 2: Convert to fraction form
    1,581.87/2,180.22 = 1,359.93/x
  3. Step 3: Cross multiply
    1,581.87x = 2,180.22 × 1,359.93
  4. Step 4: Simplify right side
    1,581.87x = 2,964,946.58
  5. Step 5: Solve for x
    x = 2,964,946.58/1,581.87
  6. Step 6: Final answer
    x = 1,874.33

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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.