Home / 1,679.11-2,317.46-933.32

Finding the Fourth Proportional to 1,679.11, 2,317.46 and 933.32

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Solution

The fourth proportional to 1,679.11, 2,317.46 and 933.32 is: 1,288.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.11 : 2,317.46 = 933.32 : x
  2. Step 2: Convert to fraction form
    1,679.11/2,317.46 = 933.32/x
  3. Step 3: Cross multiply
    1,679.11x = 2,317.46 × 933.32
  4. Step 4: Simplify right side
    1,679.11x = 2,162,915.51
  5. Step 5: Solve for x
    x = 2,162,915.51/1,679.11
  6. Step 6: Final answer
    x = 1,288.13

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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.