Home / 1,215.06-1,671.99-1,182.82

Finding the Fourth Proportional to 1,215.06, 1,671.99 and 1,182.82

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Solution

The fourth proportional to 1,215.06, 1,671.99 and 1,182.82 is: 1,627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.06 : 1,671.99 = 1,182.82 : x
  2. Step 2: Convert to fraction form
    1,215.06/1,671.99 = 1,182.82/x
  3. Step 3: Cross multiply
    1,215.06x = 1,671.99 × 1,182.82
  4. Step 4: Simplify right side
    1,215.06x = 1,977,663.21
  5. Step 5: Solve for x
    x = 1,977,663.21/1,215.06
  6. Step 6: Final answer
    x = 1,627.63

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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.