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Finding the Fourth Proportional to 1,044.34, 1,435.30 and 1,015.18

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Solution

The fourth proportional to 1,044.34, 1,435.30 and 1,015.18 is: 1,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.34 : 1,435.30 = 1,015.18 : x
  2. Step 2: Convert to fraction form
    1,044.34/1,435.30 = 1,015.18/x
  3. Step 3: Cross multiply
    1,044.34x = 1,435.30 × 1,015.18
  4. Step 4: Simplify right side
    1,044.34x = 1,457,087.85
  5. Step 5: Solve for x
    x = 1,457,087.85/1,044.34
  6. Step 6: Final answer
    x = 1,395.22

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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.