Home / 2,761.39-3,811.05-1,582.45

Finding the Fourth Proportional to 2,761.39, 3,811.05 and 1,582.45

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Solution

The fourth proportional to 2,761.39, 3,811.05 and 1,582.45 is: 2,183.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.39 : 3,811.05 = 1,582.45 : x
  2. Step 2: Convert to fraction form
    2,761.39/3,811.05 = 1,582.45/x
  3. Step 3: Cross multiply
    2,761.39x = 3,811.05 × 1,582.45
  4. Step 4: Simplify right side
    2,761.39x = 6,030,807.98
  5. Step 5: Solve for x
    x = 6,030,807.98/2,761.39
  6. Step 6: Final answer
    x = 2,183.97

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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.