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Finding the Fourth Proportional to 1,295.25, 1,787.49 and 735.74

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Solution

The fourth proportional to 1,295.25, 1,787.49 and 735.74 is: 1,015.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.25 : 1,787.49 = 735.74 : x
  2. Step 2: Convert to fraction form
    1,295.25/1,787.49 = 735.74/x
  3. Step 3: Cross multiply
    1,295.25x = 1,787.49 × 735.74
  4. Step 4: Simplify right side
    1,295.25x = 1,315,127.89
  5. Step 5: Solve for x
    x = 1,315,127.89/1,295.25
  6. Step 6: Final answer
    x = 1,015.35

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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.