Home / 2,761.70-3,811.30-1,582.84

Finding the Fourth Proportional to 2,761.70, 3,811.30 and 1,582.84

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Solution

The fourth proportional to 2,761.70, 3,811.30 and 1,582.84 is: 2,184.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.70 : 3,811.30 = 1,582.84 : x
  2. Step 2: Convert to fraction form
    2,761.70/3,811.30 = 1,582.84/x
  3. Step 3: Cross multiply
    2,761.70x = 3,811.30 × 1,582.84
  4. Step 4: Simplify right side
    2,761.70x = 6,032,687.80
  5. Step 5: Solve for x
    x = 6,032,687.80/2,761.70
  6. Step 6: Final answer
    x = 2,184.41

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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.