Home / 3,821.95-5,276.87-2,388.51

Finding the Fourth Proportional to 3,821.95, 5,276.87 and 2,388.51

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Solution

The fourth proportional to 3,821.95, 5,276.87 and 2,388.51 is: 3,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.95 : 5,276.87 = 2,388.51 : x
  2. Step 2: Convert to fraction form
    3,821.95/5,276.87 = 2,388.51/x
  3. Step 3: Cross multiply
    3,821.95x = 5,276.87 × 2,388.51
  4. Step 4: Simplify right side
    3,821.95x = 12,603,830.38
  5. Step 5: Solve for x
    x = 12,603,830.38/3,821.95
  6. Step 6: Final answer
    x = 3,297.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.