Home / 2,601.84-3,590.38-1,422.68

Finding the Fourth Proportional to 2,601.84, 3,590.38 and 1,422.68

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Solution

The fourth proportional to 2,601.84, 3,590.38 and 1,422.68 is: 1,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.84 : 3,590.38 = 1,422.68 : x
  2. Step 2: Convert to fraction form
    2,601.84/3,590.38 = 1,422.68/x
  3. Step 3: Cross multiply
    2,601.84x = 3,590.38 × 1,422.68
  4. Step 4: Simplify right side
    2,601.84x = 5,107,961.82
  5. Step 5: Solve for x
    x = 5,107,961.82/2,601.84
  6. Step 6: Final answer
    x = 1,963.21

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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.