Home / 1,607.29-2,217.99-899.22

Finding the Fourth Proportional to 1,607.29, 2,217.99 and 899.22

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Solution

The fourth proportional to 1,607.29, 2,217.99 and 899.22 is: 1,240.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.29 : 2,217.99 = 899.22 : x
  2. Step 2: Convert to fraction form
    1,607.29/2,217.99 = 899.22/x
  3. Step 3: Cross multiply
    1,607.29x = 2,217.99 × 899.22
  4. Step 4: Simplify right side
    1,607.29x = 1,994,460.97
  5. Step 5: Solve for x
    x = 1,994,460.97/1,607.29
  6. Step 6: Final answer
    x = 1,240.88

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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.