Home / 2,926.21-4,390.13-1,628.59

Finding the Fourth Proportional to 2,926.21, 4,390.13 and 1,628.59

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Solution

The fourth proportional to 2,926.21, 4,390.13 and 1,628.59 is: 2,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.21 : 4,390.13 = 1,628.59 : x
  2. Step 2: Convert to fraction form
    2,926.21/4,390.13 = 1,628.59/x
  3. Step 3: Cross multiply
    2,926.21x = 4,390.13 × 1,628.59
  4. Step 4: Simplify right side
    2,926.21x = 7,149,721.82
  5. Step 5: Solve for x
    x = 7,149,721.82/2,926.21
  6. Step 6: Final answer
    x = 2,443.34

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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.