Home / 2,648.09-3,972.80-1,553.42

Finding the Fourth Proportional to 2,648.09, 3,972.80 and 1,553.42

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Solution

The fourth proportional to 2,648.09, 3,972.80 and 1,553.42 is: 2,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.09 : 3,972.80 = 1,553.42 : x
  2. Step 2: Convert to fraction form
    2,648.09/3,972.80 = 1,553.42/x
  3. Step 3: Cross multiply
    2,648.09x = 3,972.80 × 1,553.42
  4. Step 4: Simplify right side
    2,648.09x = 6,171,411.00
  5. Step 5: Solve for x
    x = 6,171,411.00/2,648.09
  6. Step 6: Final answer
    x = 2,330.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.