Home / 1,682.98-2,517.28-1,215.52

Finding the Fourth Proportional to 1,682.98, 2,517.28 and 1,215.52

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Solution

The fourth proportional to 1,682.98, 2,517.28 and 1,215.52 is: 1,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.98 : 2,517.28 = 1,215.52 : x
  2. Step 2: Convert to fraction form
    1,682.98/2,517.28 = 1,215.52/x
  3. Step 3: Cross multiply
    1,682.98x = 2,517.28 × 1,215.52
  4. Step 4: Simplify right side
    1,682.98x = 3,059,804.19
  5. Step 5: Solve for x
    x = 3,059,804.19/1,682.98
  6. Step 6: Final answer
    x = 1,818.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.