Home / 2,229.99-3,077.48-1,285.91

Finding the Fourth Proportional to 2,229.99, 3,077.48 and 1,285.91

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Solution

The fourth proportional to 2,229.99, 3,077.48 and 1,285.91 is: 1,774.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.99 : 3,077.48 = 1,285.91 : x
  2. Step 2: Convert to fraction form
    2,229.99/3,077.48 = 1,285.91/x
  3. Step 3: Cross multiply
    2,229.99x = 3,077.48 × 1,285.91
  4. Step 4: Simplify right side
    2,229.99x = 3,957,362.31
  5. Step 5: Solve for x
    x = 3,957,362.31/2,229.99
  6. Step 6: Final answer
    x = 1,774.61

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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.