Home / 2,078.05-3,117.68-617.23

Finding the Fourth Proportional to 2,078.05, 3,117.68 and 617.23

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Solution

The fourth proportional to 2,078.05, 3,117.68 and 617.23 is: 926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.05 : 3,117.68 = 617.23 : x
  2. Step 2: Convert to fraction form
    2,078.05/3,117.68 = 617.23/x
  3. Step 3: Cross multiply
    2,078.05x = 3,117.68 × 617.23
  4. Step 4: Simplify right side
    2,078.05x = 1,924,325.63
  5. Step 5: Solve for x
    x = 1,924,325.63/2,078.05
  6. Step 6: Final answer
    x = 926.02

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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.