Home / 1,215.60-1,676.94-1,049.76

Finding the Fourth Proportional to 1,215.60, 1,676.94 and 1,049.76

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Solution

The fourth proportional to 1,215.60, 1,676.94 and 1,049.76 is: 1,448.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.60 : 1,676.94 = 1,049.76 : x
  2. Step 2: Convert to fraction form
    1,215.60/1,676.94 = 1,049.76/x
  3. Step 3: Cross multiply
    1,215.60x = 1,676.94 × 1,049.76
  4. Step 4: Simplify right side
    1,215.60x = 1,760,384.53
  5. Step 5: Solve for x
    x = 1,760,384.53/1,215.60
  6. Step 6: Final answer
    x = 1,448.16

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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.