Home / 1,248.48-1,712.75-1,214.33

Finding the Fourth Proportional to 1,248.48, 1,712.75 and 1,214.33

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Solution

The fourth proportional to 1,248.48, 1,712.75 and 1,214.33 is: 1,665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.48 : 1,712.75 = 1,214.33 : x
  2. Step 2: Convert to fraction form
    1,248.48/1,712.75 = 1,214.33/x
  3. Step 3: Cross multiply
    1,248.48x = 1,712.75 × 1,214.33
  4. Step 4: Simplify right side
    1,248.48x = 2,079,829.07
  5. Step 5: Solve for x
    x = 2,079,829.07/1,248.48
  6. Step 6: Final answer
    x = 1,665.89

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.