Home / 1,881.22-2,801.94-1,782.40

Finding the Fourth Proportional to 1,881.22, 2,801.94 and 1,782.40

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Solution

The fourth proportional to 1,881.22, 2,801.94 and 1,782.40 is: 2,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.22 : 2,801.94 = 1,782.40 : x
  2. Step 2: Convert to fraction form
    1,881.22/2,801.94 = 1,782.40/x
  3. Step 3: Cross multiply
    1,881.22x = 2,801.94 × 1,782.40
  4. Step 4: Simplify right side
    1,881.22x = 4,994,177.86
  5. Step 5: Solve for x
    x = 4,994,177.86/1,881.22
  6. Step 6: Final answer
    x = 2,654.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.