Home / 1,214.52-1,676.58-934.65

Finding the Fourth Proportional to 1,214.52, 1,676.58 and 934.65

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Solution

The fourth proportional to 1,214.52, 1,676.58 and 934.65 is: 1,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.52 : 1,676.58 = 934.65 : x
  2. Step 2: Convert to fraction form
    1,214.52/1,676.58 = 934.65/x
  3. Step 3: Cross multiply
    1,214.52x = 1,676.58 × 934.65
  4. Step 4: Simplify right side
    1,214.52x = 1,567,015.50
  5. Step 5: Solve for x
    x = 1,567,015.50/1,214.52
  6. Step 6: Final answer
    x = 1,290.23

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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.