Home / 2,761.83-3,811.40-1,582.83

Finding the Fourth Proportional to 2,761.83, 3,811.40 and 1,582.83

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Solution

The fourth proportional to 2,761.83, 3,811.40 and 1,582.83 is: 2,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.83 : 3,811.40 = 1,582.83 : x
  2. Step 2: Convert to fraction form
    2,761.83/3,811.40 = 1,582.83/x
  3. Step 3: Cross multiply
    2,761.83x = 3,811.40 × 1,582.83
  4. Step 4: Simplify right side
    2,761.83x = 6,032,790.35
  5. Step 5: Solve for x
    x = 6,032,790.35/2,761.83
  6. Step 6: Final answer
    x = 2,184.35

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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.