Home / 5,274.83-7,906.12-1,985.83

Finding the Fourth Proportional to 5,274.83, 7,906.12 and 1,985.83

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Solution

The fourth proportional to 5,274.83, 7,906.12 and 1,985.83 is: 2,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.83 : 7,906.12 = 1,985.83 : x
  2. Step 2: Convert to fraction form
    5,274.83/7,906.12 = 1,985.83/x
  3. Step 3: Cross multiply
    5,274.83x = 7,906.12 × 1,985.83
  4. Step 4: Simplify right side
    5,274.83x = 15,700,210.28
  5. Step 5: Solve for x
    x = 15,700,210.28/5,274.83
  6. Step 6: Final answer
    x = 2,976.44

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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.