Home / 1,417.94-2,121.56-1,274.06

Finding the Fourth Proportional to 1,417.94, 2,121.56 and 1,274.06

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Solution

The fourth proportional to 1,417.94, 2,121.56 and 1,274.06 is: 1,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.94 : 2,121.56 = 1,274.06 : x
  2. Step 2: Convert to fraction form
    1,417.94/2,121.56 = 1,274.06/x
  3. Step 3: Cross multiply
    1,417.94x = 2,121.56 × 1,274.06
  4. Step 4: Simplify right side
    1,417.94x = 2,702,994.73
  5. Step 5: Solve for x
    x = 2,702,994.73/1,417.94
  6. Step 6: Final answer
    x = 1,906.28

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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.