Home / 2,488.40-3,726.84-1,620.56

Finding the Fourth Proportional to 2,488.40, 3,726.84 and 1,620.56

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Solution

The fourth proportional to 2,488.40, 3,726.84 and 1,620.56 is: 2,427.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.40 : 3,726.84 = 1,620.56 : x
  2. Step 2: Convert to fraction form
    2,488.40/3,726.84 = 1,620.56/x
  3. Step 3: Cross multiply
    2,488.40x = 3,726.84 × 1,620.56
  4. Step 4: Simplify right side
    2,488.40x = 6,039,567.83
  5. Step 5: Solve for x
    x = 6,039,567.83/2,488.40
  6. Step 6: Final answer
    x = 2,427.09

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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.