Home / 2,102.94-2,902.03-1,218.89

Finding the Fourth Proportional to 2,102.94, 2,902.03 and 1,218.89

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Solution

The fourth proportional to 2,102.94, 2,902.03 and 1,218.89 is: 1,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.94 : 2,902.03 = 1,218.89 : x
  2. Step 2: Convert to fraction form
    2,102.94/2,902.03 = 1,218.89/x
  3. Step 3: Cross multiply
    2,102.94x = 2,902.03 × 1,218.89
  4. Step 4: Simplify right side
    2,102.94x = 3,537,259.55
  5. Step 5: Solve for x
    x = 3,537,259.55/2,102.94
  6. Step 6: Final answer
    x = 1,682.05

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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.