Home / 2,761.79-3,811.28-1,582.86

Finding the Fourth Proportional to 2,761.79, 3,811.28 and 1,582.86

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Solution

The fourth proportional to 2,761.79, 3,811.28 and 1,582.86 is: 2,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.79 : 3,811.28 = 1,582.86 : x
  2. Step 2: Convert to fraction form
    2,761.79/3,811.28 = 1,582.86/x
  3. Step 3: Cross multiply
    2,761.79x = 3,811.28 × 1,582.86
  4. Step 4: Simplify right side
    2,761.79x = 6,032,729.04
  5. Step 5: Solve for x
    x = 6,032,729.04/2,761.79
  6. Step 6: Final answer
    x = 2,184.35

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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.