Home / 1,717.03-2,575.56-418.50

Finding the Fourth Proportional to 1,717.03, 2,575.56 and 418.50

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Solution

The fourth proportional to 1,717.03, 2,575.56 and 418.50 is: 627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.03 : 2,575.56 = 418.50 : x
  2. Step 2: Convert to fraction form
    1,717.03/2,575.56 = 418.50/x
  3. Step 3: Cross multiply
    1,717.03x = 2,575.56 × 418.50
  4. Step 4: Simplify right side
    1,717.03x = 1,077,873.43
  5. Step 5: Solve for x
    x = 1,077,873.43/1,717.03
  6. Step 6: Final answer
    x = 627.75

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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.