Home / 2,761.83-3,811.43-1,583.12

Finding the Fourth Proportional to 2,761.83, 3,811.43 and 1,583.12

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Solution

The fourth proportional to 2,761.83, 3,811.43 and 1,583.12 is: 2,184.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.83 : 3,811.43 = 1,583.12 : x
  2. Step 2: Convert to fraction form
    2,761.83/3,811.43 = 1,583.12/x
  3. Step 3: Cross multiply
    2,761.83x = 3,811.43 × 1,583.12
  4. Step 4: Simplify right side
    2,761.83x = 6,033,964.55
  5. Step 5: Solve for x
    x = 6,033,964.55/2,761.83
  6. Step 6: Final answer
    x = 2,184.77

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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.