Home / 2,601.70-3,590.43-1,422.85

Finding the Fourth Proportional to 2,601.70, 3,590.43 and 1,422.85

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Solution

The fourth proportional to 2,601.70, 3,590.43 and 1,422.85 is: 1,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.70 : 3,590.43 = 1,422.85 : x
  2. Step 2: Convert to fraction form
    2,601.70/3,590.43 = 1,422.85/x
  3. Step 3: Cross multiply
    2,601.70x = 3,590.43 × 1,422.85
  4. Step 4: Simplify right side
    2,601.70x = 5,108,635.75
  5. Step 5: Solve for x
    x = 5,108,635.75/2,601.70
  6. Step 6: Final answer
    x = 1,963.57

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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.