Home / 2,102.04-2,902.36-1,356.43

Finding the Fourth Proportional to 2,102.04, 2,902.36 and 1,356.43

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Solution

The fourth proportional to 2,102.04, 2,902.36 and 1,356.43 is: 1,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.04 : 2,902.36 = 1,356.43 : x
  2. Step 2: Convert to fraction form
    2,102.04/2,902.36 = 1,356.43/x
  3. Step 3: Cross multiply
    2,102.04x = 2,902.36 × 1,356.43
  4. Step 4: Simplify right side
    2,102.04x = 3,936,848.17
  5. Step 5: Solve for x
    x = 3,936,848.17/2,102.04
  6. Step 6: Final answer
    x = 1,872.87

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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.