Home / 3,135.80-4,690.74-2,850.68

Finding the Fourth Proportional to 3,135.80, 4,690.74 and 2,850.68

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Solution

The fourth proportional to 3,135.80, 4,690.74 and 2,850.68 is: 4,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.80 : 4,690.74 = 2,850.68 : x
  2. Step 2: Convert to fraction form
    3,135.80/4,690.74 = 2,850.68/x
  3. Step 3: Cross multiply
    3,135.80x = 4,690.74 × 2,850.68
  4. Step 4: Simplify right side
    3,135.80x = 13,371,798.70
  5. Step 5: Solve for x
    x = 13,371,798.70/3,135.80
  6. Step 6: Final answer
    x = 4,264.24

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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.