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Finding the Fourth Proportional to 1,295.02, 1,787.18 and 735.54

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Solution

The fourth proportional to 1,295.02, 1,787.18 and 735.54 is: 1,015.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.02 : 1,787.18 = 735.54 : x
  2. Step 2: Convert to fraction form
    1,295.02/1,787.18 = 735.54/x
  3. Step 3: Cross multiply
    1,295.02x = 1,787.18 × 735.54
  4. Step 4: Simplify right side
    1,295.02x = 1,314,542.38
  5. Step 5: Solve for x
    x = 1,314,542.38/1,295.02
  6. Step 6: Final answer
    x = 1,015.07

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1.5x scale

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.