Home / 1,215.25-1,677.20-795.96

Finding the Fourth Proportional to 1,215.25, 1,677.20 and 795.96

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Solution

The fourth proportional to 1,215.25, 1,677.20 and 795.96 is: 1,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.25 : 1,677.20 = 795.96 : x
  2. Step 2: Convert to fraction form
    1,215.25/1,677.20 = 795.96/x
  3. Step 3: Cross multiply
    1,215.25x = 1,677.20 × 795.96
  4. Step 4: Simplify right side
    1,215.25x = 1,334,980.13
  5. Step 5: Solve for x
    x = 1,334,980.13/1,215.25
  6. Step 6: Final answer
    x = 1,098.53

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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.