Home / 2,101.98-2,899.08-1,304.86

Finding the Fourth Proportional to 2,101.98, 2,899.08 and 1,304.86

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Solution

The fourth proportional to 2,101.98, 2,899.08 and 1,304.86 is: 1,799.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.98 : 2,899.08 = 1,304.86 : x
  2. Step 2: Convert to fraction form
    2,101.98/2,899.08 = 1,304.86/x
  3. Step 3: Cross multiply
    2,101.98x = 2,899.08 × 1,304.86
  4. Step 4: Simplify right side
    2,101.98x = 3,782,893.53
  5. Step 5: Solve for x
    x = 3,782,893.53/2,101.98
  6. Step 6: Final answer
    x = 1,799.68

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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.