Home / 1,879.47-2,819.01-580.95

Finding the Fourth Proportional to 1,879.47, 2,819.01 and 580.95

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Solution

The fourth proportional to 1,879.47, 2,819.01 and 580.95 is: 871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.47 : 2,819.01 = 580.95 : x
  2. Step 2: Convert to fraction form
    1,879.47/2,819.01 = 580.95/x
  3. Step 3: Cross multiply
    1,879.47x = 2,819.01 × 580.95
  4. Step 4: Simplify right side
    1,879.47x = 1,637,703.86
  5. Step 5: Solve for x
    x = 1,637,703.86/1,879.47
  6. Step 6: Final answer
    x = 871.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.