Home / 1,679.08-2,317.09-933.02

Finding the Fourth Proportional to 1,679.08, 2,317.09 and 933.02

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Solution

The fourth proportional to 1,679.08, 2,317.09 and 933.02 is: 1,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.08 : 2,317.09 = 933.02 : x
  2. Step 2: Convert to fraction form
    1,679.08/2,317.09 = 933.02/x
  3. Step 3: Cross multiply
    1,679.08x = 2,317.09 × 933.02
  4. Step 4: Simplify right side
    1,679.08x = 2,161,891.31
  5. Step 5: Solve for x
    x = 2,161,891.31/1,679.08
  6. Step 6: Final answer
    x = 1,287.55

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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.