Home / 2,690.73-4,031.67-2,588.21

Finding the Fourth Proportional to 2,690.73, 4,031.67 and 2,588.21

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Solution

The fourth proportional to 2,690.73, 4,031.67 and 2,588.21 is: 3,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.73 : 4,031.67 = 2,588.21 : x
  2. Step 2: Convert to fraction form
    2,690.73/4,031.67 = 2,588.21/x
  3. Step 3: Cross multiply
    2,690.73x = 4,031.67 × 2,588.21
  4. Step 4: Simplify right side
    2,690.73x = 10,434,788.45
  5. Step 5: Solve for x
    x = 10,434,788.45/2,690.73
  6. Step 6: Final answer
    x = 3,878.05

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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.